Rename to claudify, add docs and .deb packaging

- Rename package from claude-app to claudify (v0.1.0)
- Add README.md with install/usage instructions
- Add CLAUDE.md with architecture, build, and known issues
- Add .desktop file for application menu integration
- Build target set to .deb only
- Remove failed CSD button workarounds, document upstream bug
- Remove gtk dependency (no longer needed)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src-tauri/tauri.conf.json

@@ -1,7 +1,7 @@
 {
-  "productName": "Claude",
-  "version": "1.0.0",
-  "identifier": "no.naiv.claude-app",
+  "productName": "claudify",
+  "version": "0.1.0",
+  "identifier": "no.naiv.claudify",
   "build": {
     "frontendDist": "../src"
   },
@@ -17,7 +17,7 @@
   },
   "bundle": {
     "active": true,
-    "targets": ["deb", "appimage"],
+    "targets": ["deb"],
     "icon": [
       "icons/32x32.png",
       "icons/128x128.png",
@@ -27,7 +27,9 @@
     ],
     "linux": {
       "deb": {
-        "depends": ["libwebkit2gtk-4.1-0", "libayatana-appindicator3-1"]
+        "depends": ["libwebkit2gtk-4.1-0", "libayatana-appindicator3-1"],
+        "section": "web",
+        "desktopTemplate": "claudify.desktop"
       }
     }
   }