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✻ Conversation compacted (ctrl+o for history)

  ⎿  Referenced file lumen/templates/lumen/diagram.html
  ⎿  Read lumen/inspector.py (58 lines)
  ⎿  Read lumen/views.py (18 lines)
  ⎿  Read .gitignore (35 lines)
  ⎿  Read LICENSE (22 lines)
  ⎿  Plan file referenced (~/.claude/plans/goofy-discovering-prism.md)

● Read 1 file (ctrl+o to expand)

● Now I can fix the same-name model collision. The issue is that model.name
  (just object_name) is used as the unique key everywhere, but two apps can have
   models with the same class name. The fix: add a key field ("app.ModelName")
  to each model and use it as the identifier throughout the JS, while keeping
  name only for display.

● Update(lumen/inspector.py)
  ⎿  Added 2 lines, removed 1 line
      41                  }
      42  
      43                  if field.is_relation and field.related_model:
      44 +                    rm = field.related_model._meta             
      45                      field_data["relation"] = {
      45 -                        "to": field.related_model._meta.object_
         -name,                                                          
      46 +                        "to": f"{rm.app_label}.{rm.object_name}
         +",                                                             
      47                          "kind": field.get_internal_type(),
      48                      }
      49  

● Update(lumen/inspector.py)
  ⎿  Added 2 lines, removed 1 line
      50                  fields.append(field_data)
      51  
      52              result.append({
      53 +                "key":  f"{app_label}.{meta.object_name}",     
      54                  "name": meta.object_name,
      54 -                "app": app_label,                              
      55 +                "app":  app_label,                             
      56                  "fields": fields,
      57              })
      58  

● Now update diagram.html to use model.key as the identifier everywhere:

● Update(lumen/templates/lumen/diagram.html)
  ⎿  Added 4 lines, removed 3 lines
      254      function modelH(model) { return HEADER_H + model.fields.le
           ngth * FIELD_H; }
      255  
      256      // ── Adjacency built once from ALL models ───────────────
           ──────────────────
      257 +    // model.key = "app_label.ModelName" — unique even when tw
          +o apps share a class name                                     
      258      const adjacency = {};
      258 -    MODELS.forEach(m => { adjacency[m.name] = new Set(); });  
      259 +    MODELS.forEach(m => { adjacency[m.key] = new Set(); });   
      260      MODELS.forEach(model => {
      261        model.fields.forEach(field => {
      262          if (!field.relation || !adjacency[field.relation.to]) 
           return;
      262 -        adjacency[model.name].add(field.relation.to);         
      263 -        adjacency[field.relation.to].add(model.name);         
      263 +        adjacency[model.key].add(field.relation.to);          
      264 +        adjacency[field.relation.to].add(model.key);          
      265        });
      266      });
      267  

● Update(lumen/templates/lumen/diagram.html)
  ⎿  Added 1 line, removed 1 line
      298  
      299        models.forEach(model => {
      300          const col = colHeights.indexOf(Math.min(...colHeights)
           );
      301 -        positions[model.name] = {                             
      301 +        positions[model.key] = {                              
      302            x: PADDING + col * (MODEL_W + GAP_X),
      303            y: colHeights[col],
      304          };

● Update(lumen/templates/lumen/diagram.html)
  ⎿  Added 3 lines, removed 3 lines
      314  
      315        // Model boxes
      316        models.forEach(model => {
      317 -        const { x, y } = positions[model.name];               
      317 +        const { x, y } = positions[model.key];                
      318          const box = document.createElement('div');
      319          box.className  = 'model-box';
      320          box.style.left = x + 'px';
     ...
      330              `</div>`
      331            ).join('');
      332          box.querySelector('.model-header')
      333 -           .addEventListener('click', () => handleHeaderClick(
          -model.name));                                                 
      334 -        boxEls[model.name] = box;                             
      333 +           .addEventListener('click', () => handleHeaderClick(
          +model.key));                                                  
      334 +        boxEls[model.key] = box;                              
      335          stage.appendChild(box);
      336        });
      337  

● Update(lumen/templates/lumen/diagram.html)
  ⎿  Added 6 lines, removed 6 lines
      358        models.forEach(model => {
      359          model.fields.forEach((field, fieldIdx) => {
      360            if (!field.relation) return;
      361 -          const toName = field.relation.to;                   
      362 -          if (!positions[toName]) return;                     
      361 +          const toKey = field.relation.to;   // "app_label.Mod
          +elName"                                                       
      362 +          if (!positions[toKey]) return;                      
      363  
      364 -          const fp      = positions[model.name];              
      365 -          const tp      = positions[toName];                  
      364 +          const fp      = positions[model.key];               
      365 +          const tp      = positions[toKey];                   
      366            const goRight = (tp.x + MODEL_W / 2) >= (fp.x + MODE
           L_W / 2);
      367            connections.push({
      368 -            fromModel: model.name,                            
      369 -            toModel:   toName,                                
      368 +            fromModel: model.key,                             
      369 +            toModel:   toKey,                                 
      370              field,
      371              x1: goRight ? fp.x + MODEL_W : fp.x,
      372              x2: goRight ? tp.x           : tp.x + MODEL_W,

● Update(lumen/templates/lumen/diagram.html)
  ⎿  Added 3 lines, removed 3 lines
      383          (incomingMap[`${conn.toModel}:${conn.goRight ? 'L' : '
           R'}`] ??= []).push(conn);
      384        });
      385        Object.entries(incomingMap).forEach(([key, group]) => {
      386 -        const toName = key.split(':')[0];                     
      387 -        const tp     = positions[toName];                     
      388 -        const h      = modelH(models.find(m => m.name === toNa
          -me));                                                         
      386 +        const toKey  = key.slice(0, key.lastIndexOf(':'));  //
          + key = "app.Model:L"                                          
      387 +        const tp     = positions[toKey];                      
      388 +        const h      = modelH(models.find(m => m.key === toKey
          +));                                                           
      389          group.forEach((conn, i) => {
      390            conn.y2 = group.length === 1
      391              ? tp.y + HEADER_H / 2

● Update(lumen/templates/lumen/diagram.html)
  ⎿  Added 3 lines, removed 3 lines
      515        const active = new Set();
      516        MODELS.forEach(m => {
      517          if (!selectedApps.has(m.app)) return;
      518 -        active.add(m.name);                                   
      519 -        adjacency[m.name].forEach(n => active.add(n));        
      518 +        active.add(m.key);                                    
      519 +        adjacency[m.key].forEach(n => active.add(n));         
      520        });
      521 -      return MODELS.filter(m => active.has(m.name));          
      521 +      return MODELS.filter(m => active.has(m.key));           
      522      }
      523  
      524      const filterBar = document.getElementById('filter-bar');

● Now let me verify the incomingMap key extraction is consistent — the key was
  \${conn.toModel}:${conn.goRight ? 'L' : 'R'}`andconn.toModelis now"app.Model",
   so the full key is "app.Model:L". Using key.lastIndexOf(':')correctly splits 
  off the:L/:R` suffix regardless of dots in the app label.

  Let me do a quick sanity-check on the final state of the changed sections:

● Read 1 file (ctrl+o to expand)

● Everything looks correct. Here's a summary of what was changed and why:

  inspector.py
  - Each model now emits a "key" field: "app_label.ModelName" (e.g.
  "blog.Comment") — unique across all apps
  - relation.to now uses the same qualified format (e.g. "forum.Comment" instead
   of just "Comment")
  - The "name" field is kept as the bare class name, used only for display in
  the header

  diagram.html
  - adjacency, positions, boxEls all keyed by model.key instead of model.name
  - Header click passes model.key to handleHeaderClick
  - Connection routing uses model.key / field.relation.to (now both qualified)
  for lookups
  - incomingMap key extraction uses lastIndexOf(':') so it correctly handles
  dots in "app_label.Model:L"
  - Filter logic uses m.key for set membership
  - Display still shows model.name (bare class name) and model.app badge —
  unchanged

✻ Baked for 3m 10s

❯ can you add on side bar option to choose few other line types typical for 
   uml diagram?                                                             

● I need to:
  1. Add a "Line style" section to the sidebar
  2. Define SVG markers for Arrow, Crow's Foot, and UML notation
  3. Refactor the line drawing into drawLines() so style changes don't re-layout
  4. Wire up the style chips

  Let me read the current file once more to make sure I have the exact content,
  then write the updated version.
  ⎿  API Error: Claude's response exceeded the 32000 output token maximum. To 
     configure this behavior, set the CLAUDE_CODE_MAX_OUTPUT_TOKENS environment 
     variable.

● I'll break this into targeted edits. Let me work through them one at a time.

  Edit 1 — Add linestyle-bar to the sidebar HTML:

● Update(lumen/templates/lumen/diagram.html)
  ⎿  Added 5 lines
      202          {# chips populated by JS #}
      203        </div>
      204  
      205 +      <div id="linestyle-bar" style="margin-top:1rem;">       
      206 +        <label>Line style</label>                             
      207 +        {# chips populated by JS #}                           
      208 +      </div>                                                  
      209 +                                                              
      210        <div class="legend">
      211          <strong>Relations</strong>
      212          <div class="legend-item">

● Edit 2 — Replace the single-style svg.innerHTML defs with a buildDefs() that
  generates markers for all three styles:

● Update(lumen/templates/lumen/diagram.html)
  ⎿  Added 37 lines, removed 6 lines
      275      const svg      = document.getElementById('lines');
      276      const viewport = document.getElementById('viewport');
      277  
      278 -    // Arrow markers added once and never removed             
      279 -    svg.innerHTML = `<defs>${Object.entries(COLORS).map(([kind
          -, color]) =>                                                  
      280 -      `<marker id="arrow-${kind}" markerWidth="8" markerHeight
          -="6"                                                          
      281 -               refX="7" refY="3" orient="auto">               
      282 -         <polygon points="0 0, 8 3, 0 6" fill="${color}"/>    
      283 -       </marker>`).join('')}</defs>`;                         
      278 +    // Build all SVG marker definitions for every style × rela
          +tion kind                                                     
      279 +    function buildDefs() {                                    
      280 +      const d = [];                                           
      281 +      Object.entries(COLORS).forEach(([kind, c]) => {         
      282 +        // Arrow style — filled triangle                      
      283 +        d.push(`<marker id="arrow-${kind}" markerWidth="8" mar
          +kerHeight="6" refX="7" refY="3" orient="auto">                
      284 +          <polygon points="0 0,8 3,0 6" fill="${c}"/></marker>
          +`);                                                           
      285 +        // Crow's foot — many end (bar + three fan lines, touc
          +hes target box)                                               
      286 +        d.push(`<marker id="cf-many-end-${kind}" markerWidth="
          +14" markerHeight="12" refX="12" refY="6" orient="auto">       
      287 +          <line x1="12" y1="0" x2="12" y2="12" stroke="${c}" s
          +troke-width="1.5"/>                                           
      288 +          <line x1="2"  y1="6" x2="12" y2="1"  stroke="${c}" s
          +troke-width="1.5"/>                                           
      289 +          <line x1="2"  y1="6" x2="12" y2="6"  stroke="${c}" s
          +troke-width="1.5"/>                                           
      290 +          <line x1="2"  y1="6" x2="12" y2="11" stroke="${c}" s
          +troke-width="1.5"/></marker>`);                               
      291 +        // Crow's foot — many start (bar + three fan lines, to
          +uches source box)                                             
      292 +        d.push(`<marker id="cf-many-start-${kind}" markerWidth
          +="14" markerHeight="12" refX="0" refY="6" orient="auto">      
      293 +          <line x1="0" y1="0"  x2="0"  y2="12" stroke="${c}" s
          +troke-width="1.5"/>                                           
      294 +          <line x1="0" y1="1"  x2="10" y2="6"  stroke="${c}" s
          +troke-width="1.5"/>                                           
      295 +          <line x1="0" y1="6"  x2="10" y2="6"  stroke="${c}" s
          +troke-width="1.5"/>                                           
      296 +          <line x1="0" y1="11" x2="10" y2="6"  stroke="${c}" s
          +troke-width="1.5"/></marker>`);                               
      297 +        // Crow's foot — one end (double bar, touches target b
          +ox)                                                           
      298 +        d.push(`<marker id="cf-one-end-${kind}" markerWidth="1
          +0" markerHeight="12" refX="9" refY="6" orient="auto">         
      299 +          <line x1="9" y1="0" x2="9" y2="12" stroke="${c}" str
          +oke-width="1.5"/>                                             
      300 +          <line x1="5" y1="0" x2="5" y2="12" stroke="${c}" str
          +oke-width="1.5"/></marker>`);                                 
      301 +        // Crow's foot — one start (double bar, touches source
          + box)                                                         
      302 +        d.push(`<marker id="cf-one-start-${kind}" markerWidth=
          +"10" markerHeight="12" refX="0" refY="6" orient="auto">       
      303 +          <line x1="0" y1="0" x2="0" y2="12" stroke="${c}" str
          +oke-width="1.5"/>                                             
      304 +          <line x1="4" y1="0" x2="4" y2="12" stroke="${c}" str
          +oke-width="1.5"/></marker>`);                                 
      305 +        // UML — open arrowhead end                           
      306 +        d.push(`<marker id="uml-arrow-${kind}" markerWidth="10
          +" markerHeight="10" refX="9" refY="5" orient="auto">          
      307 +          <polyline points="1,1 9,5 1,9" fill="none" stroke="$
          +{c}" stroke-width="1.5"/></marker>`);                         
      308 +        // UML — filled diamond start (composition, used for O
          +neToOneField)                                                 
      309 +        d.push(`<marker id="uml-diamond-${kind}" markerWidth="
          +13" markerHeight="10" refX="0" refY="5" orient="auto">        
      310 +          <polygon points="0,5 6,1 12,5 6,9" fill="${c}"/></ma
          +rker>`);                                                      
      311 +      });                                                     
      312 +      return `<defs>${d.join('')}</defs>`;                    
      313 +    }                                                         
      314 +    svg.innerHTML = buildDefs();                              
      315  
      316      // ── Mutable render state ───────────────────────────────
           ──────────────────
      317      let boxEls       = {};    // rebuilt on each renderDiagram
            call

● Edit 3 — Add lineStyle, currentModels, currentPositions variables and the
  LINE_STYLES/getLineConfig helper right after the existing mutable state block:

● Update(lumen/templates/lumen/diagram.html)
  ⎿  Added 33 lines, removed 2 lines
      314      svg.innerHTML = buildDefs();
      315  
      316      // ── Mutable render state ───────────────────────────────
           ──────────────────
      317 -    let boxEls       = {};    // rebuilt on each renderDiagram
          - call                                                         
      318 -    let focusedModel = null;                                  
      317 +    let boxEls           = {};    // rebuilt on each renderDia
          +gram call                                                     
      318 +    let focusedModel     = null;                              
      319 +    let lineStyle        = 'arrow';                           
      320 +    let currentModels    = [];                                
      321 +    let currentPositions = {};                                
      322  
      323 +    // Per-style marker config keyed by relation kind         
      324 +    const LINE_STYLES = {                                     
      325 +      arrow: {                                                
      326 +        ForeignKey:      { start: null,            end: 'arrow
          +',         dash: '' },                                        
      327 +        OneToOneField:   { start: null,            end: 'arrow
          +',         dash: '' },                                        
      328 +        ManyToManyField: { start: null,            end: 'arrow
          +',         dash: '' },                                        
      329 +      },                                                      
      330 +      crowfoot: {                                             
      331 +        ForeignKey:      { start: 'cf-one-start',  end: 'cf-ma
          +ny-end',   dash: '' },                                        
      332 +        OneToOneField:   { start: 'cf-one-start',  end: 'cf-on
          +e-end',    dash: '' },                                        
      333 +        ManyToManyField: { start: 'cf-many-start', end: 'cf-ma
          +ny-end',   dash: '' },                                        
      334 +      },                                                      
      335 +      uml: {                                                  
      336 +        ForeignKey:      { start: null,            end: 'uml-a
          +rrow',     dash: '' },                                        
      337 +        OneToOneField:   { start: 'uml-diamond',   end: 'uml-a
          +rrow',     dash: '' },                                        
      338 +        ManyToManyField: { start: null,            end: 'uml-a
          +rrow',     dash: '6 3' },                                     
      339 +      },                                                      
      340 +    };                                                        
      341 +                                                              
      342 +    function getLineConfig(kind) {                            
      343 +      const cfg = (LINE_STYLES[lineStyle] ?? LINE_STYLES.arrow
          +)[kind] ?? LINE_STYLES.arrow.ForeignKey;                      
      344 +      return {                                                
      345 +        markerStart: cfg.start ? `url(#${cfg.start}-${kind})` 
          +: '',                                                         
      346 +        markerEnd:   cfg.end   ? `url(#${cfg.end}-${kind})`   
          +: '',                                                         
      347 +        dash:        cfg.dash,                                
      348 +      };                                                      
      349 +    }                                                         
      350 +                                                              
      351      // ── renderDiagram(models) ──────────────────────────────
           ──────────────────
      352      // Tears down all boxes/lines and rebuilds from the given 
           model list.
      353      function renderDiagram(models) {

● Edit 4 — Extract drawLines() and refactor renderDiagram to store state and
  call it. Replace the entire renderDiagram function:

● Update(lumen/templates/lumen/diagram.html)
  ⎿  Added 74 lines, removed 83 lines
      348        };
      349      }
      350  
      351 -    // ── renderDiagram(models) ──────────────────────────────
          -──────────────────                                            
      352 -    // Tears down all boxes/lines and rebuilds from the given 
          -model list.                                                   
      353 -    function renderDiagram(models) {                          
      354 -      focusedModel = null;                                    
      355 -      stage.querySelectorAll('.model-box').forEach(el => el.re
          -move());                                                      
      351 +    // ── drawLines(models, positions) ───────────────────────
          +──────────────────                                            
      352 +    // Redraws only the SVG paths; can be called without re-la
          +ying out boxes.                                               
      353 +    function drawLines(models, positions) {                   
      354        svg.querySelectorAll('path').forEach(p => p.remove());
      357 -      boxEls = {};                                            
      355  
      359 -      if (models.length === 0) return;                        
      356 +      const HW_Y = PADDING / 2;                               
      357  
      361 -      // Masonry layout                                       
      362 -      const cols       = Math.max(1, Math.ceil(Math.sqrt(model
          -s.length * 0.75)));                                           
      363 -      const colHeights = new Array(cols).fill(PADDING);       
      364 -      const positions  = {};                                  
      365 -                                                              
      366 -      models.forEach(model => {                               
      367 -        const col = colHeights.indexOf(Math.min(...colHeights)
          -);                                                            
      368 -        positions[model.key] = {                              
      369 -          x: PADDING + col * (MODEL_W + GAP_X),               
      370 -          y: colHeights[col],                                 
      371 -        };                                                    
      372 -        colHeights[col] += modelH(model) + GAP_Y;             
      373 -      });                                                     
      374 -                                                              
      375 -      const stageW = PADDING * 2 + cols * MODEL_W + (cols - 1)
          - * GAP_X;                                                     
      376 -      const stageH = Math.max(...colHeights) + PADDING;       
      377 -      stage.style.width  = stageW + 'px';                     
      378 -      stage.style.height = stageH + 'px';                     
      379 -      svg.setAttribute('width',  stageW);                     
      380 -      svg.setAttribute('height', stageH);                     
      381 -                                                              
      382 -      // Model boxes                                          
      383 -      models.forEach(model => {                               
      384 -        const { x, y } = positions[model.key];                
      385 -        const box = document.createElement('div');            
      386 -        box.className  = 'model-box';                         
      387 -        box.style.left = x + 'px';                            
      388 -        box.style.top  = y + 'px';                            
      389 -        box.innerHTML  =                                      
      390 -          `<div class="model-header">` +                      
      391 -            `<span class="app-badge">${model.app}</span>${mode
          -l.name}` +                                                    
      392 -          `</div>` +                                          
      393 -          model.fields.map(f =>                               
      394 -            `<div class="model-field ${f.relation ? (KIND_CLAS
          -S[f.relation.kind] ?? '') : ''}">` +                          
      395 -              `<span class="field-name">${f.name}</span>` +   
      396 -              `<span class="field-type">${f.type}</span>` +   
      397 -            `</div>`                                          
      398 -          ).join('');                                         
      399 -        box.querySelector('.model-header')                    
      400 -           .addEventListener('click', () => handleHeaderClick(
          -model.key));                                                  
      401 -        boxEls[model.key] = box;                              
      402 -        stage.appendChild(box);                               
      403 -      });                                                     
      404 -                                                              
      405 -      // ── Relation lines: collect → route → draw ───────────
          -──────────────────                                            
      406 -      //                                                      
      407 -      // Routing strategy (all orthogonal, no diagonal segment
          -s):                                                           
      408 -      //   Adjacent columns  →  3-segment: H → V → H  (through
          - the gap between them)                                        
      409 -      //   Non-adjacent cols →  5-segment: H → V↑ → H → V↓ → H
      410 -      //                        The middle horizontal travels 
          -along a "highway" at                                          
      411 -      //                        y = HW_Y, which is above all m
          -odel boxes (y < PADDING).                                     
      412 -      //                        This guarantees lines never pa
          -ss behind any model box.                                      
      413 -      //                                                      
      414 -      // Each segment stays inside a gap (not inside a model b
          -ox):                                                          
      415 -      //   • First  H: source box edge → gap channel adjacent 
          -to source column                                              
      416 -      //   • V ↑/↓: travels through that gap (no boxes at this
          - x)                                                           
      417 -      //   • Middle H (non-adj only): at y=HW_Y, above all con
          -tent                                                          
      418 -      //   • V ↓/↑: travels through gap channel adjacent to ta
          -rget column                                                   
      419 -      //   • Last   H: gap channel → target box edge          
      420 -                                                              
      421 -      const HW_Y = PADDING / 2;  // guaranteed above all conte
          -nt (boxes start at y=PADDING)                                 
      422 -                                                              
      358        // Pass 1: collect
      359        const connections = [];
      360        models.forEach(model => {
      361          model.fields.forEach((field, fieldIdx) => {
      362            if (!field.relation) return;
      428 -          const toKey = field.relation.to;   // "app_label.Mod
          -elName"                                                       
      363 +          const toKey = field.relation.to;                    
      364            if (!positions[toKey]) return;
      430 -                                                              
      365            const fp      = positions[model.key];
      366            const tp      = positions[toKey];
      367            const goRight = (tp.x + MODEL_W / 2) >= (fp.x + MODE
           L_W / 2);
     ...
      384          (incomingMap[`${conn.toModel}:${conn.goRight ? 'L' : '
           R'}`] ??= []).push(conn);
      385        });
      386        Object.entries(incomingMap).forEach(([key, group]) => {
      453 -        const toKey  = key.slice(0, key.lastIndexOf(':'));  //
          - key = "app.Model:L"                                          
      454 -        const tp     = positions[toKey];                      
      455 -        const h      = modelH(models.find(m => m.key === toKey
          -));                                                           
      387 +        const toKey = key.slice(0, key.lastIndexOf(':'));     
      388 +        const tp    = positions[toKey];                       
      389 +        const h     = modelH(models.find(m => m.key === toKey)
          +);                                                            
      390          group.forEach((conn, i) => {
      391            conn.y2 = group.length === 1
      392              ? tp.y + HEADER_H / 2
     ...
      395        });
      396  
      397        // Pass 2b: assign routing channels; offset parallel tru
           nks
      464 -      //   cS = vertical channel in the gap adjacent to the SO
          -URCE column                                                   
      465 -      //   cT = vertical channel in the gap adjacent to the TA
          -RGET column                                                   
      466 -      //   isAdj = cS and cT are the same gap → use 3-segment 
          -path                                                          
      398        const TRUNK_SPACING = 8;
      399        const trunkMap = {};
      400        connections.forEach(conn => {
     ...
      411  
      412        // Pass 3: draw
      413        connections.forEach(conn => {
      483 -        const sX = conn.cS + conn.offset;                     
      484 -        const tX = conn.cT + conn.offset;                     
      485 -        const d  = conn.isAdj                                 
      414 +        const sX  = conn.cS + conn.offset;                    
      415 +        const tX  = conn.cT + conn.offset;                    
      416 +        const d   = conn.isAdj                                
      417            ? `M ${conn.x1} ${conn.y1} H ${sX} V ${conn.y2} H ${
           conn.x2}`
      418            : `M ${conn.x1} ${conn.y1} H ${sX} V ${HW_Y} H ${tX}
            V ${conn.y2} H ${conn.x2}`;
      488 -                                                              
      419 +        const cfg  = getLineConfig(conn.field.relation.kind); 
      420          const path = document.createElementNS('http://www.w3.o
           rg/2000/svg', 'path');
      490 -        path.setAttribute('d', d);                            
      421 +        path.setAttribute('d',            d);                 
      422          path.setAttribute('fill',         'none');
      423          path.setAttribute('stroke',       COLORS[conn.field.re
           lation.kind] ?? '#94a3b8');
      424          path.setAttribute('stroke-width', '1.5');
      494 -        path.setAttribute('marker-end',   `url(#arrow-${conn.f
          -ield.relation.kind})`);                                       
      425 +        if (cfg.dash)        path.setAttribute('stroke-dasharr
          +ay', cfg.dash);                                               
      426 +        if (cfg.markerStart) path.setAttribute('marker-start',
          +     cfg.markerStart);                                        
      427 +        if (cfg.markerEnd)   path.setAttribute('marker-end',  
          +     cfg.markerEnd);                                          
      428          path.dataset.from = conn.fromModel;
      429          path.dataset.to   = conn.toModel;
      430          svg.appendChild(path);
      431        });
      432 +    }                                                         
      433  
      434 +    // ── renderDiagram(models) ──────────────────────────────
          +──────────────────                                            
      435 +    // Tears down all boxes/lines and rebuilds layout from scr
          +atch.                                                         
      436 +    function renderDiagram(models) {                          
      437 +      focusedModel = null;                                    
      438 +      stage.querySelectorAll('.model-box').forEach(el => el.re
          +move());                                                      
      439 +      svg.querySelectorAll('path').forEach(p => p.remove());  
      440 +      boxEls = {};                                            
      441 +      currentModels    = models;                              
      442 +      currentPositions = {};                                  
      443 +                                                              
      444 +      if (models.length === 0) return;                        
      445 +                                                              
      446 +      // Masonry layout                                       
      447 +      const cols       = Math.max(1, Math.ceil(Math.sqrt(model
          +s.length * 0.75)));                                           
      448 +      const colHeights = new Array(cols).fill(PADDING);       
      449 +                                                              
      450 +      models.forEach(model => {                               
      451 +        const col = colHeights.indexOf(Math.min(...colHeights)
          +);                                                            
      452 +        currentPositions[model.key] = {                       
      453 +          x: PADDING + col * (MODEL_W + GAP_X),               
      454 +          y: colHeights[col],                                 
      455 +        };                                                    
      456 +        colHeights[col] += modelH(model) + GAP_Y;             
      457 +      });                                                     
      458 +                                                              
      459 +      const stageW = PADDING * 2 + cols * MODEL_W + (cols - 1)
          + * GAP_X;                                                     
      460 +      const stageH = Math.max(...colHeights) + PADDING;       
      461 +      stage.style.width  = stageW + 'px';                     
      462 +      stage.style.height = stageH + 'px';                     
      463 +      svg.setAttribute('width',  stageW);                     
      464 +      svg.setAttribute('height', stageH);                     
      465 +                                                              
      466 +      // Model boxes                                          
      467 +      models.forEach(model => {                               
      468 +        const { x, y } = currentPositions[model.key];         
      469 +        const box = document.createElement('div');            
      470 +        box.className  = 'model-box';                         
      471 +        box.style.left = x + 'px';                            
      472 +        box.style.top  = y + 'px';                            
      473 +        box.innerHTML  =                                      
      474 +          `<div class="model-header">` +                      
      475 +            `<span class="app-badge">${model.app}</span>${mode
          +l.name}` +                                                    
      476 +          `</div>` +                                          
      477 +          model.fields.map(f =>                               
      478 +            `<div class="model-field ${f.relation ? (KIND_CLAS
          +S[f.relation.kind] ?? '') : ''}">` +                          
      479 +              `<span class="field-name">${f.name}</span>` +   
      480 +              `<span class="field-type">${f.type}</span>` +   
      481 +            `</div>`                                          
      482 +          ).join('');                                         
      483 +        box.querySelector('.model-header')                    
      484 +           .addEventListener('click', () => handleHeaderClick(
          +model.key));                                                  
      485 +        boxEls[model.key] = box;                              
      486 +        stage.appendChild(box);                               
      487 +      });                                                     
      488 +                                                              
      489 +      drawLines(models, currentPositions);                    
      490 +                                                              
      491        // Fit & centre after rebuild
      492        const vpW = viewport.clientWidth;
      493        const vpH = viewport.clientHeight;

● Edit 5 — Add the line-style chip initialization after the app-filter chips
  block:

● Update(lumen/templates/lumen/diagram.html)
  ⎿  Added 17 lines
      592        filterBar.appendChild(chip);
      593      });
      594  
      595 +    // ── Line style chips ───────────────────────────────────
          +──────────────────                                            
      596 +    const LS_LABELS = { arrow: 'Arrow', crowfoot: "Crow's Foot
          +", uml: 'UML' };                                              
      597 +    const lsBar = document.getElementById('linestyle-bar');   
      598 +    Object.entries(LS_LABELS).forEach(([style, label]) => {   
      599 +      const chip = document.createElement('span');            
      600 +      chip.className   = 'app-chip' + (style === lineStyle ? '
          + selected' : '');                                             
      601 +      chip.textContent = label;                               
      602 +      chip.addEventListener('click', () => {                  
      603 +        if (lineStyle === style) return;                      
      604 +        lineStyle = style;                                    
      605 +        lsBar.querySelectorAll('.app-chip').forEach(c => c.cla
          +ssList.remove('selected'));                                   
      606 +        chip.classList.add('selected');                       
      607 +        drawLines(currentModels, currentPositions);           
      608 +      });                                                     
      609 +      lsBar.appendChild(chip);                                
      610 +    });                                                       
      611 +                                                              
      612      // ── Initial render ─────────────────────────────────────
           ──────────────────
      613      renderDiagram(MODELS);
      614    </script>

● Let me do a quick sanity check on the key sections:

● Read 1 file (ctrl+o to expand)

● Everything looks correct. Here's a summary of what was added:

  Sidebar — a new "Line style" section below the app filter with three chips:
  Arrow, Crow's Foot, UML. Clicking a chip re-renders only the lines (no layout
  change, zoom/pan preserved).

  Three line styles:

  ┌─────────┬──────────────────┬─────────────────────┬────────────────────┐
  │  Style  │    ForeignKey    │    OneToOneField    │  ManyToManyField   │
  ├─────────┼──────────────────┼─────────────────────┼────────────────────┤
  │ Arrow   │ → filled         │ → filled triangle   │ → filled triangle  │
  │         │ triangle         │                     │                    │
  ├─────────┼──────────────────┼─────────────────────┼────────────────────┤
  │ Crow's  │ |{ one-bar start │ || bars on both     │ }{ crow's feet on  │
  │ Foot    │  + crow's foot   │ ends                │ both ends          │
  │         │ end              │                     │                    │
  ├─────────┼──────────────────┼─────────────────────┼────────────────────┤
  │         │ solid line +     │ filled diamond      │ dashed line + open │
  │ UML     │ open arrowhead   │ start + open        │  arrowhead         │
  │         │                  │ arrowhead           │                    │
  └─────────┴──────────────────┴─────────────────────┴────────────────────┘

  Architecture change — line drawing was extracted into drawLines(models, 
  positions). Switching styles calls only drawLines on the cached layout (no
  re-layout, no zoom reset). renderDiagram stores currentModels/currentPositions
   and calls drawLines at the end.

✻ Churned for 9m 25s

❯ make line style selector as combo box 

● Read 1 file (ctrl+o to expand)

● Three small edits: add <select> CSS, replace the HTML placeholder, replace the
   JS chip loop with a <select>.

● Update(lumen/templates/lumen/diagram.html)
  ⎿  Added 14 lines
      134      .model-box  { transition: opacity 0.2s; }
      135      #lines path { transition: opacity 0.2s; opacity: 0.75; }
      136  
      137 +    /* ── Sidebar selects ── */                               
      138 +    .sidebar-select {                                         
      139 +      width: 100%;                                            
      140 +      padding: 5px 8px;                                       
      141 +      border-radius: 5px;                                     
      142 +      border: 1px solid #e2e8f0;                              
      143 +      background: #f8fafc;                                    
      144 +      color: #475569;                                         
      145 +      font-size: 0.8rem;                                      
      146 +      cursor: pointer;                                        
      147 +      margin-top: 4px;                                        
      148 +    }                                                         
      149 +    .sidebar-select:focus { outline: 2px solid #93c5fd; border
          +-color: #93c5fd; }                                            
      150 +                                                              
      151      /* ── App filter (sidebar) ── */
      152      #filter-bar { display: flex; flex-direction: column; gap: 
           4px; }
      153      #filter-bar label {

● Update(lumen/templates/lumen/diagram.html)
  ⎿  Added 5 lines, removed 1 line
      218  
      219        <div id="linestyle-bar" style="margin-top:1rem;">
      220          <label>Line style</label>
      221 -        {# chips populated by JS #}                           
      221 +        <select id="linestyle-select" class="sidebar-select"> 
      222 +          <option value="arrow">Arrow</option>                
      223 +          <option value="crowfoot">Crow's Foot</option>       
      224 +          <option value="uml">UML</option>                    
      225 +        </select>                                             
      226        </div>
      227  
      228        <div class="legend">

● Update(lumen/templates/lumen/diagram.html)
  ⎿  Added 4 lines, removed 15 lines
      610        filterBar.appendChild(chip);
      611      });
      612  
      613 -    // ── Line style chips ───────────────────────────────────
          -──────────────────                                            
      614 -    const LS_LABELS = { arrow: 'Arrow', crowfoot: "Crow's Foot
          -", uml: 'UML' };                                              
      615 -    const lsBar = document.getElementById('linestyle-bar');   
      616 -    Object.entries(LS_LABELS).forEach(([style, label]) => {   
      617 -      const chip = document.createElement('span');            
      618 -      chip.className   = 'app-chip' + (style === lineStyle ? '
          - selected' : '');                                             
      619 -      chip.textContent = label;                               
      620 -      chip.addEventListener('click', () => {                  
      621 -        if (lineStyle === style) return;                      
      622 -        lineStyle = style;                                    
      623 -        lsBar.querySelectorAll('.app-chip').forEach(c => c.cla
          -ssList.remove('selected'));                                   
      624 -        chip.classList.add('selected');                       
      625 -        drawLines(currentModels, currentPositions);           
      626 -      });                                                     
      627 -      lsBar.appendChild(chip);                                
      613 +    // ── Line style select ──────────────────────────────────
          +───────────────────                                           
      614 +    document.getElementById('linestyle-select').addEventListen
          +er('change', e => {                                           
      615 +      lineStyle = e.target.value;                             
      616 +      drawLines(currentModels, currentPositions);             
      617      });
      618  
      619      // ── Initial render ─────────────────────────────────────
           ──────────────────

● Done. The <select> is defined directly in the HTML with the three options, so
  no JS needed to build it — just the one change listener. The sidebar-select
  style matches the sidebar's existing look (same border radius, font size, and
  colours as the app chips).

❯ group models by app and make rectangle around each app 
  ⎿  You've hit your limit · resets 1am (Europe/Zagreb)
     /upgrade or /extra-usage to finish what you’re working on.

❯ /context 
  ⎿  Context Usage
     ⛁ ⛀ ⛁ ⛁ ⛁ ⛁ ⛁ ⛁ ⛁ ⛁   claude-sonnet-4-6 · 80k/200k tokens (40%)
     ⛀ ⛀ ⛁ ⛁ ⛁ ⛁ ⛁ ⛁ ⛁ ⛁ 
     ⛁ ⛁ ⛁ ⛁ ⛁ ⛁ ⛁ ⛁ ⛁ ⛁   Estimated usage by category
     ⛁ ⛁ ⛁ ⛁ ⛁ ⛁ ⛁ ⛁ ⛁ ⛁   ⛁ System prompt: 3.2k tokens (1.6%)
     ⛁ ⛁ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶   ⛁ System tools: 17.4k tokens (8.7%)
     ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶   ⛁ Skills: 84 tokens (0.0%)
     ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶   ⛁ Messages: 60k tokens (30.0%)
     ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶ ⛶   ⛶ Free space: 86k (43.2%)
     ⛶ ⛶ ⛶ ⛝ ⛝ ⛝ ⛝ ⛝ ⛝ ⛝   ⛝ Autocompact buffer: 33k tokens (16.5%)
     ⛝ ⛝ ⛝ ⛝ ⛝ ⛝ ⛝ ⛝ ⛝ ⛝ 

     Skills · /skills