refactor(profiles): shared project entity with per-scope switching

Projects are now global shared entities; Claude and Codex groups switch
independently via scoped current pointers and scoped payload slots.

- Remove scope column from profiles; keep current_profile_id_<scope>
- Use Option<Vec<String>> for mcp/skills to distinguish 'never captured'
  from 'captured empty', preventing cross-side accidental disable
- Update/apply operations scoped to the active group via merge_scope_from
- Tray menu nests same shared list under Claude Code/Codex groups
- Add i18n for per-scope tooltips and 'not saved for this side' hint

Refs: profile P1 shared-entity redesign

src-tauri/src/database/schema.rs

@@ -295,7 +295,8 @@ impl Database {
         )
         .map_err(|e| AppError::Database(e.to_string()))?;
 
-        // 19. Profiles 表（项目配置方案：按 app 快照供应商/MCP/Skills/Prompt）
+        // 19. Profiles 表（全应用共享的项目实体，payload 按 app 分槽快照
+        //     供应商/MCP/Skills/Prompt；各应用分组的 current 标记在 settings 表）
         conn.execute(
             "CREATE TABLE IF NOT EXISTS profiles (
                 id TEXT PRIMARY KEY,
@@ -309,6 +310,20 @@ impl Database {
         )
         .map_err(|e| AppError::Database(e.to_string()))?;
 
+        // 修复跑过未发布开发版的库：current 标记曾是全局 key，现按应用分组
+        // （随 v12 定稿为 current_profile_id_<scope>，不单独 bump 版本）
+        if conn
+            .execute(
+                "INSERT OR REPLACE INTO settings (key, value)
+                 SELECT 'current_profile_id_claude', value FROM settings
+                 WHERE key = 'current_profile_id'",
+                [],
+            )
+            .is_ok()
+        {
+            let _ = conn.execute("DELETE FROM settings WHERE key = 'current_profile_id'", []);
+        }
+
         // 尝试添加 live_takeover_active 列到 proxy_config 表
         let _ = conn.execute(
             "ALTER TABLE proxy_config ADD COLUMN live_takeover_active INTEGER NOT NULL DEFAULT 0",