feat(FN-3195): document llama.cpp provider setup and onboarding

Docs(FN-3195): adds llama.cpp provider setup and onboarding documentation to the main and dashboard READMEs.

Fusion-Task-Id: FN-3195

packages/pi-llama-cpp/package.json

@@ -0,0 +1,36 @@
+{
+  "name": "@fusion/pi-llama-cpp",
+  "version": "0.17.2",
+  "description": "First-party Fusion pi extension for llama.cpp HTTP server integration.",
+  "license": "MIT",
+  "private": true,
+  "type": "module",
+  "main": "index.ts",
+  "keywords": [
+    "pi-package",
+    "fusion",
+    "llama-cpp"
+  ],
+  "pi": {
+    "extensions": [
+      "index.ts"
+    ]
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/Runfusion/Fusion",
+    "directory": "packages/pi-llama-cpp"
+  },
+  "peerDependencies": {
+    "@mariozechner/pi-coding-agent": "*"
+  },
+  "devDependencies": {
+    "@types/node": "^22.0.0",
+    "typescript": "^5.7.0",
+    "vitest": "^3.0.0"
+  },
+  "scripts": {
+    "test": "vitest run --reporter=dot",
+    "typecheck": "tsc --noEmit"
+  }
+}