Cleanup: Remove old modes, add Svelte 5 reference library, update orchestrator

- Delete Mode1Test, Mode2Test, Mode3Test, Mode5Test (keep only Mode6Test)
- Delete old documentation, Docker files, and k8s configs
- Add comprehensive Svelte 5 reference library (svelte-reference/)
- Update ModeSwitch orchestrator:
  - Fix port to 3005 (never use 3000/3001)
  - Add API endpoints for mode switching
  - Add bun-types and proper tsconfig
  - Clean up mode folder mappings

ModeSwitch/tsconfig.json

@@ -0,0 +1,21 @@
+{
+  "compilerOptions": {
+    "lib": ["ESNext"],
+    "module": "ESNext",
+    "target": "ESNext",
+    "moduleResolution": "bundler",
+    "moduleDetection": "force",
+    "allowImportingTsExtensions": true,
+    "noEmit": true,
+    "composite": true,
+    "strict": true,
+    "downlevelIteration": true,
+    "skipLibCheck": true,
+    "jsx": "preserve",
+    "allowSyntheticDefaultImports": true,
+    "forceConsistentCasingInFileNames": true,
+    "allowJs": true,
+    "types": ["bun-types"]
+  },
+  "include": ["**/*.ts", "**/*.tsx"]
+}