feat: add release-android skill, command and script

- Add bin/release-android.mjs: Universal Android release script
  - Auto-detect Android project root (standalone or monorepo)
  - Auto-detect Gitea config from git remote URL (HTTPS/SSH)
  - Auto-detect Java Home from Android Studio
  - Support tag-based release workflow

- Add command/release-android.md: Command to trigger release process

- Add skill/release-android/SKILL.md: Skill documentation with full script source

- Update opencode.json: Enable thinking for claude models

opencode.json

@@ -1,5 +1,27 @@
 {
   "$schema": "https://opencode.ai/config.json",
+  "provider": {
+    "opencode": {
+      "models": {
+        "claude-opus-4-5": {
+          "options": {
+            "thinking": {
+              "type": "enabled",
+              "budgetTokens": 16000
+            }
+          }
+        },
+        "claude-sonnet-4-5": {
+          "options": {
+            "thinking": {
+              "type": "enabled",
+              "budgetTokens": 16000
+            }
+          }
+        }
+      }
+    }
+  },
   "mcp": {
     "ref": {
       "type": "remote",