fix: remove legacy path from auto-claude source detection (#148)

Removes the legacy 'auto-claude' path from the possiblePaths array
in agent-process.ts. This path was from before the monorepo
restructure (v2.7.2) and is no longer needed.

The legacy path was causing spec_runner.py to be looked up at the
wrong location:
- OLD (wrong): /path/to/auto-claude/auto-claude/runners/spec_runner.py
- NEW (correct): /path/to/apps/backend/runners/spec_runner.py

This aligns with the new monorepo structure where all backend code
lives in apps/backend/.

Fixes #147

Co-authored-by: Joris Slagter <mail@jorisslagter.nl>

apps/frontend/src/main/agent/agent-process.ts

@@ -63,9 +63,7 @@ export class AgentProcessManager {
       // Alternative: from app root -> apps/backend
       path.resolve(app.getAppPath(), '..', 'backend'),
       // If running from repo root with apps structure
-      path.resolve(process.cwd(), 'apps', 'backend'),
-      // Legacy: auto-claude folder (for backwards compatibility)
-      path.resolve(process.cwd(), 'auto-claude')
+      path.resolve(process.cwd(), 'apps', 'backend')
     ];
 
     for (const p of possiblePaths) {