fix: Mobile responsiveness for Focus Tools & AI chat improvements

Mobile Responsiveness:
- Fix headers on all Focus Tools pages (responsive text sizes, proper spacing)
- Fix BodyDoublingLobby form grid (stacks on mobile)
- Add shrink-0 and min-w-0 to prevent flex overflow issues

AI Chat Improvements:
- Add labelName parameter to createTask tool for easier label assignment
- Auto-match or create labels when labelName is provided
- Improve system prompt to act immediately without confirmation
- Clearer instructions about using tools and handling labels
- Better support for Ollama models with function calling

playwright.config.ts

@@ -0,0 +1,21 @@
+import { defineConfig, devices } from '@playwright/test';
+
+export default defineConfig({
+  testDir: './tests',
+  fullyParallel: false,
+  forbidOnly: !!process.env.CI,
+  retries: process.env.CI ? 2 : 0,
+  workers: 1,
+  reporter: 'list',
+  use: {
+    baseURL: 'http://localhost:2100',
+    trace: 'on-first-retry',
+  },
+  projects: [
+    {
+      name: 'chromium',
+      use: { ...devices['Desktop Chrome'] },
+    },
+  ],
+  timeout: 120000,
+});