Phase 8: Helm chart extraction with Go template support

- extract-helm.js: strips Go templates, parses Chart.yaml/values.yaml/templates
- Extracts K8s resource kinds, cross-chart interactions, shared secrets, ports
- generateHelmDiagram() for Mermaid interaction graphs
- Integrated into sysdoc.js: Helm entities merge into main knowledge graph
- Dir-based filenames to handle duplicate chart names
- .gitignore for node_modules, snapshots, venv, wasm
- 76 charts, 1813 entities, 1769 relationships on Foxtrot

doc-demo.js

@@ -0,0 +1,47 @@
+const {generateEntityDoc} = require('./docgen.js');
+const GraphStore = require('./graph.js');
+const fs = require('fs');
+const g = GraphStore.loadSnapshot('snapshots/openclaw-full.json');
+
+async function run() {
+  const targets = [
+    {id: 'gateway/session-utils.ts', file: '/app/src/gateway/session-utils.ts'},
+    {id: 'pairing/pairing-store.ts', file: '/app/src/pairing/pairing-store.ts'},
+    {id: 'infra/state-migrations.ts', file: '/app/src/infra/state-migrations.ts'},
+  ];
+
+  for (const t of targets) {
+    const entity = g.nodes.get(t.id);
+    if (!entity) continue;
+
+    let source = '';
+    try { source = fs.readFileSync(t.file, 'utf8'); } catch {}
+
+    const funcs = [];
+    const fileIds = g.fileIndex.get(t.file);
+    if (fileIds) {
+      for (const fid of fileIds) {
+        const fe = g.nodes.get(fid);
+        if (fe && fe.type === 'Function' && fe.visibility === 'public') {
+          funcs.push(fe.name);
+        }
+      }
+    }
+
+    const imports = g.edges.filter(e => e.type === 'IMPORTS' && e.source === t.id).map(e => e.target.replace('dep:', ''));
+
+    console.log(`\n### Module: \`${t.id}\``);
+    try {
+      // Use Kiro backend instead of local Ollama for faster/more reliable generation
+      process.env.LLM_BACKEND = 'openai';
+      const doc = await generateEntityDoc(t.id, g, source);
+      console.log(doc);
+    } catch (e) {
+      console.log('*Doc generation failed:* ' + e.message);
+    }
+    
+    if (funcs.length > 0) console.log(`\n**Public Exports:** \`${funcs.slice(0, 8).join('`, `')}${funcs.length > 8 ? '` (+' + (funcs.length-8) + ' more)' : '`'}`);
+    if (imports.length > 0) console.log(`**Key Dependencies:** \`${imports.slice(0, 6).join('`, `')}${imports.length > 6 ? '` (+' + (imports.length-6) + ' more)' : '`'}`);
+  }
+}
+run();