Fix: Add project parameter parsing to enable chat in project context

When accessing the IDE with ?project= URL parameter, the project context
was not being initialized, causing auto-session creation to fail and
chat to show "Please start or attach to a session first" error.

Changes:
- Added currentProjectName global variable
- Parse project parameter from URL on page load
- Set window.currentProjectDir for chat-functions.js auto-session logic
- Extract project name from path for display

Fixes chat not responding when navigating from landing page or projects view.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

public/claude-ide/ide.js

@@ -1,5 +1,6 @@
 // Claude Code IDE JavaScript
 let currentSession = null;
+let currentProjectName = null;
 let ws = null;
 
 // Make ws globally accessible for other scripts
@@ -15,10 +16,18 @@ document.addEventListener('DOMContentLoaded', () => {
     initNavigation();
     connectWebSocket();
 
-    // Check URL params for session and prompt
+    // Check URL params for session, prompt, and project
     const urlParams = new URLSearchParams(window.location.search);
     const sessionId = urlParams.get('session');
     const prompt = urlParams.get('prompt');
+    const project = urlParams.get('project');
+
+    // Parse project parameter if present
+    if (project) {
+        window.currentProjectDir = decodeURIComponent(project);
+        currentProjectName = project.split('/').filter(Boolean).pop() || 'Project';
+        console.log('[Init] Project context loaded:', currentProjectName, window.currentProjectDir);
+    }
 
     if (sessionId || prompt) {
         // Switch to chat view first