feat: introduce opus 4.7

- Bump claude-agent-sdk from 0.2.59 to 0.2.116
- Forward process.env to SDK subprocess so ANTHROPIC_BASE_URL and other env vars work
- Add claude-opus-4-6 as a distinct mode

package.json

@@ -65,7 +65,7 @@
   "author": "CloudCLI UI Contributors",
   "license": "AGPL-3.0-or-later",
   "dependencies": {
-    "@anthropic-ai/claude-agent-sdk": "^0.2.59",
+    "@anthropic-ai/claude-agent-sdk": "^0.2.116",
     "@codemirror/lang-css": "^6.3.1",
     "@codemirror/lang-html": "^6.4.9",
     "@codemirror/lang-javascript": "^6.2.4",