feat: add Ollama (local AI) integration for AIUI

- Create Ollama provider plugin in AIUI (ollama-provider.ts)
- Register Ollama alongside Claude in plugin system
- Auto-detect installed models via /api/tags endpoint
- Add Ollama proxy in mock backend (forwards to localhost:11434)
- Add nginx proxy rules for /aiui/api/ollama/ (both HTTP and HTTPS)
- Rebuild AIUI dist with Ollama provider included
- Qwen 2.5 Coder 3B installed on dev server via Ollama

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

demo/aiui/assets/chunk-FMBD7UC4-BW8Xs0oO.js

@@ -0,0 +1,15 @@
+import{_ as e}from"./mermaid.core-CJYA4M6R.js";var l=e(()=>`
+  /* Font Awesome icon styling - consolidated */
+  .label-icon {
+    display: inline-block;
+    height: 1em;
+    overflow: visible;
+    vertical-align: -0.125em;
+  }
+  
+  .node .label-icon path {
+    fill: currentColor;
+    stroke: revert;
+    stroke-width: revert;
+  }
+`,"getIconStyles");export{l as g};