iOS .lime import without cname does not appear in installed IM list

[limeimetw]

Problem

On iOS, importing a .lime table that does not include @cname@ / %cname metadata can report success, but the installed IM list shows no installed input method afterward. In the IM catalog, the same IM/table still appears as installed.

Observed behavior

• User imports a .lime file without cname metadata.
• Import completes successfully.
• The IM manager / installed IM list shows no installed IM.
• The IM catalog still marks the imported IM/table as installed.

Expected behavior

After a successful .lime import, iOS should register and display the imported IM in the installed IM list even when cname metadata is missing. If cname is absent, the app should use a safe fallback display name such as version metadata, file name, table name, or a localized custom-table name.

Suggested investigation

• Check the iOS .lime import path for text files in SetupImController.importTxtFile(...) and LimeDB.importTxtFile(...).
• Verify whether successful text import writes mapping rows but does not create/update the corresponding im table row when cname is absent.
• Compare installed-list source (ManageImController.loadIMList() / DBServer.getAllImConfigs()) with IM catalog installed detection (IMDownloadManager.refreshInstalledTables() / tableHasData(...)).
• Confirm whether keyboard_state / active IM state is rebuilt after text import.

Verification plan

• Import a .lime file without @cname@ / %cname metadata.
• Confirm the imported table appears in the installed IM list with a fallback name.
• Confirm the IM catalog installed state and installed IM list agree.
• Confirm the imported IM can be enabled/disabled and used by the keyboard.

[limeimetw]

補充追蹤：Android 端也要一起檢查 .lime 匯入的 metadata 解析。

目前已知不只是 iOS 安裝清單顯示問題；Android 匯入含有 @version@、@cname@ 的 .lime 檔時，雖然匯入成功，但 cname / version metadata 可能沒有正確讀入或保存。

這邊修正時有一個重點需要驗證：.lime 解析是否應該像 .cin 一樣支援 # 開頭的註解列。行列10的 .lime 檔案裡有多行 # 開頭註解，如果 parser 沒有正確略過，可能會影響後續 @version@ / @cname@ metadata 解析。

後續請把 Android .lime metadata 讀取一起納入 #93 的修正與驗證範圍。