Separate app DB per Git worktree (#348)

scripts/git-hooks/post-checkout.mjs

@@ -86,6 +86,9 @@ try {
   // Continue with default ports
 }
 
+// Get worktree name from current directory
+const worktreeName = path.basename(process.cwd());
+
 // Create .env.local with unique ports
 const envContent = `# Auto-generated by git post-checkout hook
 # This file configures ports for this worktree to avoid conflicts
@@ -95,6 +98,9 @@ YAAK_DEV_PORT=${maxDevPort}
 
 # MCP Server port (main worktree uses 64343)
 YAAK_PLUGIN_MCP_SERVER_PORT=${maxMcpPort}
+
+# Database path prefix for worktree isolation
+YAAK_DB_PATH_PREFIX=worktrees/${worktreeName}
 `;
 
 fs.writeFileSync(envLocalPath, envContent, 'utf8');