fix: Resolve MCP installation issues and enhance path resolution

- Fixed API endpoint mismatches in mcp-manager.js to ensure global install/update buttons function correctly.
- Corrected undefined function references in mcp-manager.js for project installation.
- Refactored event handling to eliminate global scope pollution in mcp-manager.js.
- Added comprehensive debugging guide for MCP installation issues.
- Implemented a session path resolver to infer content types from filenames and paths, improving usability.
- Introduced tests for embeddings improvements in init and status commands to verify functionality.

.mcp.json

@@ -1,11 +1,3 @@
 {
-  "mcpServers": {
-    "ccw-tools": {
-      "command": "npx",
-      "args": [
-        "-y",
-        "ccw-mcp"
-      ]
-    }
-  }
+  "mcpServers": {}
 }