fix(release): add Linux deb package metadata

Ensure Electron Builder has the project URL and maintainer metadata required by Linux deb targets, and lock the fields with release workflow coverage.

Tested: bun test scripts/pr/release-workflow.test.ts
Tested: bun run check:policy
Tested: bun run check:native
Tested: bun run verify
Confidence: high
Scope-risk: narrow

desktop/package.json

@@ -2,6 +2,12 @@
   "name": "claude-code-desktop",
   "private": true,
   "version": "0.3.2",
+  "description": "Desktop coding agent workbench for Claude Code Haha.",
+  "homepage": "https://github.com/NanmiCoder/cc-haha",
+  "author": {
+    "name": "NanmiCoder",
+    "email": "relakkes@gmail.com"
+  },
   "type": "module",
   "main": "electron-dist/main.cjs",
   "build": {
@@ -50,7 +56,8 @@
         "deb"
       ],
       "icon": "src-tauri/icons",
-      "category": "Development"
+      "category": "Development",
+      "maintainer": "NanmiCoder <relakkes@gmail.com>"
     },
     "publish": [
       {

scripts/pr/release-workflow.test.ts

@@ -47,6 +47,28 @@ describe('release desktop workflow', () => {
     }
   })
 
+  test('desktop package includes Linux deb metadata required by electron-builder', () => {
+    const desktopPackage = JSON.parse(readFileSync('desktop/package.json', 'utf8')) as {
+      description?: string
+      homepage?: string
+      author?: {
+        name?: string
+        email?: string
+      }
+      build?: {
+        linux?: {
+          maintainer?: string
+        }
+      }
+    }
+
+    expect(desktopPackage.description).toBeTruthy()
+    expect(desktopPackage.homepage).toBe('https://github.com/NanmiCoder/cc-haha')
+    expect(desktopPackage.author?.name).toBe('NanmiCoder')
+    expect(desktopPackage.author?.email).toBe('relakkes@gmail.com')
+    expect(desktopPackage.build?.linux?.maintainer).toBe('NanmiCoder <relakkes@gmail.com>')
+  })
+
   test('release workflow requires macOS Gatekeeper launch approval before upload', () => {
     const workflow = readReleaseWorkflow()
     const gatekeeperStep = workflow.match(