- Add normalize_server_keys() to ensure MCP server map keys match internal id fields
- Auto-normalize on all read/write operations (get, upsert, delete, import, sync)
- Handle edge cases: empty/whitespace ids, key renaming, conflict resolution
- Auto-save config when normalization detects changes
- Apply cargo fmt for code formatting consistency
This enhancement improves data integrity by automatically fixing inconsistencies
between server entry keys and their id fields, especially after manual config edits.
- Apply immediately on save (write or remove primaryApiKey)
- Honor setting on provider switch (enabled: write for non-official, remove for official; disabled: no auto writes)
- Remove per-provider Claude plugin buttons from ProviderList
- Upsert primaryApiKey=any preserving other fields; respect override dir
- Add zh/en i18n for the new setting
