Updated default model from gemini-2.5-pro to gemini-3-pro-preview across:
- Provider presets (PackyCode, Custom)
- Form field placeholders
- Default configurations
- Test cases
Google Official preset now has empty env config, allowing users to choose
their own model or use application defaults, which is more appropriate for
OAuth-based authentication.
Changes:
- geminiProviderPresets.ts: updated model to gemini-3-pro-preview, removed model from Google Official
- GeminiFormFields.tsx: updated placeholder to gemini-3-pro-preview
- GeminiConfigSections.tsx: updated placeholder to gemini-3-pro-preview
- ProviderForm.tsx: updated default config to gemini-3-pro-preview
- gemini_config.rs: updated test examples to gemini-3-pro-preview
Previously, when editing a Gemini provider, only the .env file was read,
missing the settings.json file that contains MCP configuration and other
settings. This caused the config field in the edit form to be empty or
show outdated data.
This fix ensures both files are read and merged into the complete
structure { "env": {...}, "config": {...} }, matching the behavior
of Codex provider.
Fixed in:
- read_live_settings(): now reads both .env and settings.json
- import_default_config(): now reads both files when importing
- Update RegValue.to_string() usage to match current winreg API
which returns String directly instead of Result
- Add conditional compilation for std::fs import (Unix only)
* feat(providers): add notes field for provider management
- Add notes field to Provider model (backend and frontend)
- Display notes with higher priority than URL in provider card
- Style notes as non-clickable text to differentiate from URLs
- Add notes input field in provider form
- Add i18n support (zh/en) for notes field
* chore: format code and clean up unused props
- Run cargo fmt on Rust backend code
- Format TypeScript imports and code style
- Remove unused appId prop from ProviderPresetSelector
- Clean up unused variables in tests
- Integrate notes field handling in provider dialogs
* feat(deeplink): implement ccswitch:// protocol for provider import
Add deep link support to enable one-click provider configuration import via ccswitch:// URLs.
Backend:
- Implement URL parsing and validation (src-tauri/src/deeplink.rs)
- Add Tauri commands for parse and import (src-tauri/src/commands/deeplink.rs)
- Register ccswitch:// protocol in macOS Info.plist
- Add comprehensive unit tests (src-tauri/tests/deeplink_import.rs)
Frontend:
- Create confirmation dialog with security review UI (src/components/DeepLinkImportDialog.tsx)
- Add API wrapper (src/lib/api/deeplink.ts)
- Integrate event listeners in App.tsx
Configuration:
- Update Tauri config for deep link handling
- Add i18n support for Chinese and English
- Include test page for deep link validation (deeplink-test.html)
Files: 15 changed, 1312 insertions(+)
* chore(deeplink): integrate deep link handling into app lifecycle
Wire up deep link infrastructure with app initialization and event handling.
Backend Integration:
- Register deep link module and commands in mod.rs
- Add URL handling in app setup (src-tauri/src/lib.rs:handle_deeplink_url)
- Handle deep links from single instance callback (Windows/Linux CLI)
- Handle deep links from macOS system events
- Add tauri-plugin-deep-link dependency (Cargo.toml)
Frontend Integration:
- Listen for deeplink-import/deeplink-error events in App.tsx
- Update DeepLinkImportDialog component imports
Configuration:
- Enable deep link plugin in tauri.conf.json
- Update Cargo.lock for new dependencies
Localization:
- Add Chinese translations for deep link UI (zh.json)
- Add English translations for deep link UI (en.json)
Files: 9 changed, 359 insertions(+), 18 deletions(-)
* refactor(deeplink): enhance Codex provider template generation
Align deep link import with UI preset generation logic by:
- Adding complete config.toml template matching frontend defaults
- Generating safe provider name from sanitized input
- Including model_provider, reasoning_effort, and wire_api settings
- Removing minimal template that only contained base_url
- Cleaning up deprecated test file deeplink-test.html
* style: fix clippy uninlined_format_args warnings
Apply clippy --fix to use inline format arguments in:
- src/mcp.rs (8 fixes)
- src/services/env_manager.rs (10 fixes)
* style: apply code formatting and cleanup
- Format TypeScript files with Prettier (App.tsx, EnvWarningBanner.tsx, formatters.ts)
- Organize Rust imports and module order alphabetically
- Add newline at end of JSON files (en.json, zh.json)
- Update Cargo.lock for dependency changes
* feat: add model name configuration support for Codex and fix Gemini model handling
- Add visual model name input field for Codex providers
- Add model name extraction and update utilities in providerConfigUtils
- Implement model name state management in useCodexConfigState hook
- Add conditional model field rendering in CodexFormFields (non-official only)
- Integrate model name sync with TOML config in ProviderForm
- Fix Gemini deeplink model injection bug
- Correct environment variable name from GOOGLE_GEMINI_MODEL to GEMINI_MODEL
- Add test cases for Gemini model injection (with/without model)
- All tests passing (9/9)
- Fix Gemini model field binding in edit mode
- Add geminiModel state to useGeminiConfigState hook
- Extract model value during initialization and reset
- Sync model field with geminiEnv state to prevent data loss on submit
- Fix missing model value display when editing Gemini providers
Changes:
- 6 files changed, 245 insertions(+), 13 deletions(-)
* feat(skills): add Claude Skills management feature
Implement complete Skills management system with repository discovery,
installation, and lifecycle management capabilities.
Backend:
- Add SkillService with GitHub integration and installation logic
- Implement skill commands (list, install, uninstall, check updates)
- Support multiple skill repositories with caching
Frontend:
- Add Skills management page with repository browser
- Create SkillCard and RepoManager components
- Add badge, card, table UI components
- Integrate Skills API with Tauri commands
Files: 10 files changed, 1488 insertions(+)
* feat(skills): integrate Skills feature into application
Integrate Skills management feature with complete dependency updates,
configuration structure extensions, and internationalization support.
Dependencies:
- Add @radix-ui/react-visually-hidden for accessibility
- Add anyhow, zip, serde_yaml, tempfile for Skills backend
- Enable chrono serde feature for timestamp serialization
Backend Integration:
- Extend MultiAppConfig with SkillStore field
- Implement skills.json migration from legacy location
- Register SkillService and skill commands in main app
- Export skill module in commands and services
Frontend Integration:
- Add Skills page route and dialog in App
- Integrate Skills UI with main navigation
Internationalization:
- Add complete Chinese translations for Skills UI
- Add complete English translations for Skills UI
Code Quality:
- Remove redundant blank lines in gemini_mcp.rs
- Format log statements in mcp.rs
Tests:
- Update import_export_sync tests for SkillStore
- Update mcp_commands tests for new structure
Files: 16 files changed, 540 insertions(+), 39 deletions(-)
* style(skills): improve SkillsPage typography and spacing
Optimize visual hierarchy and readability of Skills page:
- Reduce title size from 2xl to lg with tighter tracking
- Improve description spacing and color contrast
- Enhance empty state with better text hierarchy
- Use explicit gray colors for better dark mode support
* feat(skills): support custom subdirectory path for skill scanning
Add optional skillsPath field to SkillRepo to enable scanning skills
from subdirectories (e.g., "skills/") instead of repository root.
Changes:
- Backend: Add skillsPath field with subdirectory scanning logic
- Frontend: Add skillsPath input field and display in repo list
- Presets: Add cexll/myclaude repo with skills/ subdirectory
- Code quality: Fix clippy warnings (dedup logic, string formatting)
Backward compatible: skillsPath is optional, defaults to root scanning.
* refactor(skills): improve repo manager dialog layout
Optimize dialog structure with fixed header and scrollable content:
- Add flexbox layout with fixed header and scrollable body
- Remove outer border wrapper for cleaner appearance
- Match SkillsPage design pattern for consistency
- Improve UX with better content hierarchy
Add `center: true` to main window configuration to improve initial
window positioning on Windows and other platforms. This addresses
user feedback about the window appearing in the top-left corner.
Previously, only Codex provider switches triggered MCP synchronization,
which could cause MCP configuration loss when switching Claude or Gemini
providers.
Changes:
- Enable MCP sync for all app types (Claude, Codex, Gemini) during provider switch
- Migrate to v3.7.0 unified MCP sync mechanism using McpService::sync_all_enabled()
- Replace app-specific sync_enabled_to_codex() with unified sync for all apps
- Remove unused mcp module import
This ensures MCP servers remain properly configured across all applications
after provider switches, preventing configuration loss.
BREAKING CHANGE: The [mcp.servers] format was completely incorrect and not
any official Codex format. The only correct format is [mcp_servers] at the
top level of config.toml.
Changes:
- Remove incorrect [mcp.servers] nested table support
- Always use [mcp_servers] top-level table (official Codex format)
- Auto-migrate and cleanup erroneous [mcp.servers] entries on write
- Preserve error-tolerant import for migrating old incorrect configs
- Simplify sync logic by removing format selection branches (~60 lines)
- Update all documentation and tests to reflect correct format
- Add warning logs when detecting and cleaning incorrect format
Backend (Rust):
- mcp.rs: Simplify sync_enabled_to_codex by removing Target enum
- mcp.rs: sync_single_server_to_codex now always uses [mcp_servers]
- mcp.rs: remove_server_from_codex cleans both locations
- mcp.rs: Update import_from_codex comments to clarify format status
- tests: Rename test to sync_enabled_to_codex_migrates_erroneous_*
- tests: Update assertions to verify migration behavior
Frontend (TypeScript):
- tomlUtils.ts: Prioritize [mcp_servers] format in parsing
- tomlUtils.ts: Update error messages to guide correct format
Documentation:
- README.md: Correct MCP format reference to [mcp_servers]
- CLAUDE.md: Add comprehensive format specification with examples
All 79 tests pass. This ensures backward compatibility while enforcing
the correct Codex official standard going forward.
Refs: https://github.com/openai/codex/issues/3441
- Update primary blue from Linear style (#3498db) to macOS system blue (#0A84FF)
- Align gray scale with macOS dark mode palette (#1C1C1E, #2C2C2E, etc.)
- Adjust dark mode background to match macOS systemBackground (HSL 240 5% 12%)
- Refine scrollbar colors to use native macOS gray tones
- Remove transparent titleBarStyle for better stability
- Add unified `common_config_snippets` structure to MultiAppConfig
- Implement `get_common_config_snippet` and `set_common_config_snippet` commands
- Replace localStorage with config.json persistence for Codex and Gemini
- Auto-migrate legacy `claude_common_config_snippet` to new unified structure
- Deprecate individual API methods in favor of unified interface
- Add automatic migration from localStorage on first load
BREAKING CHANGE: Common config snippets now stored in unified `common_config_snippets` object instead of separate fields
- Change auto_import_prompt_if_exists return type to Result<bool>
- Remove redundant save() calls by introducing updated flag
- Eliminate unnecessary clone() in app type iterations
- Remove semantic contradiction in let _ = ...? pattern
- Improve code semantics and maintainability
Performance: Reduce disk I/O by 50%+ through unified save logic
Fix backfill logic in prompt enable workflow:
- Prioritize backfilling live file content to currently enabled prompt (prevent data loss)
- Create backup only when no enabled prompt exists and content is new (avoid duplicate backups)
- Implement staged persistence (save after backfill + save after enable)
- Add explicit logging for backfill/backup operations
Also simplify string formatting in prompt_files.rs with inline format strings.
- Rewrite import_from_claude/codex/gemini to write directly to mcp.servers
- Implement skip-on-error strategy for fault tolerance (single invalid item no longer aborts entire batch)
- Smart merge logic: existing servers only enable corresponding app, preserve other configs
- Remove deprecated markers from service layer
- Export McpApps type for test usage
- Update mcp_commands tests to use unified structure
Fixes runtime import issue where data was written to legacy structure (mcp.claude/codex.servers)
but unified panel reads from new structure (mcp.servers), causing "imported but invisible" bug.
Problem:
- On first launch, McpRoot::default() created `servers: None`
- McpService::get_all_servers() would incorrectly return error "old structure detected"
- This confused new users who had no legacy MCP data
Root Cause:
- Derived Default trait sets Option<T> fields to None
- New installations should start with v3.7.0 structure immediately
Solution:
- Explicitly implement Default for McpRoot
- Initialize `servers: Some(HashMap::new())` for v3.7.0+ structure
- Legacy fields (claude/codex/gemini) remain empty, only used for deserializing old configs
Impact:
- First-time users get correct v3.7.0 structure immediately
- migrate_mcp_to_unified() correctly detects already-migrated state
- No false "old structure" errors on fresh installs
## Compilation Fixes
- Add deprecated compatibility methods to McpService:
* get_servers() - filters servers by app
* set_enabled() - delegates to toggle_app()
* sync_enabled() - syncs enabled servers for specific app
* import_from_claude/codex/gemini() - wraps mcp:: functions
- Fix toml_edit type conversion in sync_single_server_to_codex():
* Add json_server_to_toml_table() helper function
* Manually construct toml_edit::Table instead of invalid serde conversion
- Fix get_codex_config_path() calls (returns PathBuf, not Result)
- Update upsert_mcp_server_in_config() to work with unified structure:
* Converts old per-app API to unified McpServer structure
* Preserves existing server data when updating
* Supports sync_other_side parameter for multi-app enable
- Update delete_mcp_server_in_config() to ignore app parameter
## Backward Compatibility
- All old v3.6.x commands continue to work with deprecation warnings
- Frontend migration can be done incrementally
- Old commands transparently use new unified backend
## Status
✅ Backend compiles successfully (cargo check passes)
⚠️ 16 warnings (8 deprecation + 8 unused functions - expected)
- Add gemini_mcp.rs module for Gemini MCP file I/O operations
- Implement sync_enabled_to_gemini to export enabled MCPs to ~/.gemini/settings.json
- Implement import_from_gemini to import MCPs from Gemini config
- Add Gemini sync logic in services/mcp.rs (upsert_server, delete_server, set_enabled)
- Register Tauri commands for Gemini MCP sync and import
- Update frontend API calls and McpPanel to support Gemini
Fixes the issue where adding MCP servers in Gemini tab would not sync to ~/.gemini/settings.json
Migrate the Claude common config snippet storage from browser localStorage
to the persistent config.json file for better cross-device sync and backup support.
**Backend Changes:**
- Add `claude_common_config_snippet` field to `MultiAppConfig` struct
- Add `get_claude_common_config_snippet` and `set_claude_common_config_snippet` Tauri commands
- Include JSON validation in the setter command
**Frontend Changes:**
- Create new `lib/api/config.ts` API module
- Refactor `useCommonConfigSnippet` hook to use config.json instead of localStorage
- Add automatic one-time migration from localStorage to config.json
- Add loading state during initialization
**Benefits:**
- Cross-device synchronization via backup/restore
- More reliable persistence than browser storage
- Centralized configuration management
- Seamless migration for existing users
Address code review feedback for PR #214:
- Replace hardcoded Chinese strings with English in auto-imported prompts
- Prompt name: "Auto-imported Prompt" instead of "初始提示词"
- Description: "Automatically imported on first launch"
- Remove panic risk by replacing expect() with proper error propagation
- Use AppError::localized for bilingual error messages
- Extract get_base_dir_with_fallback() helper to eliminate code duplication
- Update test assertions to match new English strings
- Suppress false-positive dead_code warning on TempHome.dir field
All 5 tests passing with zero compiler warnings.
- Extract prompt file path logic to dedicated prompt_files module
- Refactor PromptService to use centralized path resolution
- Implement auto-import for existing prompt files on first startup
- Add comprehensive unit tests for auto-import functionality
Allow users to create Gemini provider configurations without API key
and fill it in later. Split validation into two modes:
- validate_gemini_settings: Basic structure check (used when adding)
- validate_gemini_settings_strict: Full validation (used when switching)
This fixes the error 'Gemini config missing required field: GEMINI_API_KEY'
when trying to add Gemini providers from presets like PackyCode or Google.
Changes:
- Add validate_gemini_settings_strict for switching validation
- Update write_gemini_live to use strict validation
- Add comprehensive tests for both validation modes
Refactor tray menu system to support three applications (Claude/Codex/Gemini):
- Introduce generic TrayAppSection structure and TRAY_SECTIONS array
- Implement append_provider_section and handle_provider_tray_event helper functions
- Enhance Gemini provider service with .env config read/write support
- Implement Gemini LiveSnapshot for atomic operations and rollback
- Update README documentation to reflect Gemini tray quick switching feature
* feat(prompts): add prompt management across Tauri service and React UI
- backend: add commands/prompt.rs, services/prompt.rs, register in commands/mod.rs and lib.rs, refine app_config.rs
- frontend: add PromptPanel, PromptFormModal, PromptListItem, MarkdownEditor, usePromptActions, integrate in App.tsx
- api: add src/lib/api/prompts.ts
- i18n: update src/i18n/locales/{en,zh}.json
- build: update package.json and pnpm-lock.yaml
* feat(i18n): improve i18n for prompts and Markdown editor
- update src/i18n/locales/{en,zh}.json keys and strings
- apply i18n in PromptFormModal, PromptPanel, and MarkdownEditor
- align prompt text with src-tauri/src/services/prompt.rs
* feat(prompts): add enable/disable toggle and simplify panel UI
- Add PromptToggle component and integrate in prompt list items
- Implement toggleEnabled with optimistic update; enable via API, disable via upsert with enabled=false;
reload after success
- Simplify PromptPanel: remove file import and current-file preview to keep CRUD flow focused
- Tweak header controls style (use mcp variant) and minor copy: rename “Prompt Management” to “Prompts”
- i18n: add disableSuccess/disableFailed messages
- Backend (Tauri): prevent duplicate backups when importing original prompt content
* style: unify code formatting with trailing commas
* feat(prompts): add Gemini filename support to PromptFormModal
Update filename mapping to use Record<AppId, string> pattern, supporting
GEMINI.md alongside CLAUDE.md and AGENTS.md.
* fix(prompts): sync enabled prompt to file when updating
When updating a prompt that is currently enabled, automatically sync
the updated content to the corresponding live file (CLAUDE.md/AGENTS.md/GEMINI.md).
This ensures the active prompt file always reflects the latest content
when editing enabled prompts.
Add independent credential fields for usage query to support different
query endpoints and authentication methods.
Changes:
- Add `apiKey` and `baseUrl` fields to UsageScript struct
- Remove dependency on provider config credentials in query_usage
- Update test_usage_script to accept independent credential parameters
- Add credential input fields in UsageScriptModal based on template:
* General: apiKey + baseUrl
* NewAPI: baseUrl + accessToken + userId
* Custom: no additional fields (full freedom)
- Auto-clear irrelevant fields when switching templates
- Add i18n text for "credentialsConfig"
Benefits:
- Query API can use different endpoint/key than provider config
- Better separation of concerns
- More flexible for various usage query scenarios
Replace unwrap() calls with safe pattern matching to prevent panics
when handling invalid tray menu item IDs. Now logs errors and returns
gracefully instead of crashing the application.
Ensure that when importing default configuration from live files,
the created provider is properly marked with category "custom" for
correct UI display and filtering.
- Format code in app_config.rs to comply with rustfmt rules
- Remove extra blank line in config.rs
- Format test code in app_config_load.rs for consistency
- Remove 5 unused functions that were left over from migration refactoring:
- get_archive_root, ensure_unique_path, archive_file (config.rs)
- read_config_text_from_path, read_and_validate_config_from_path (codex_config.rs)
- Simplify is_v1 check using is_some_and instead of map_or for better readability
- Remove outdated comments about removed functions
This eliminates all dead_code warnings and improves code maintainability.
Remove the entire migration module (435 lines) that was used for
one-time migration from v3.1.0 to v3.2.0. This cleans up technical
debt and improves startup performance.
Changes:
- Delete src-tauri/src/migration.rs (copy file scanning and merging)
- Remove migration module reference from lib.rs
- Simplify startup logic to only ensure config structure exists
- Remove automatic deduplication and archiving logic
BREAKING CHANGE: Users upgrading from v3.1.0 must first upgrade to
v3.2.x to automatically migrate their configurations.
BREAKING CHANGE: Runtime auto-migration from v1 to v2 config format has been removed.
Changes:
- Remove automatic v1→v2 migration logic from MultiAppConfig::load()
- Improve v1 detection using structural analysis (checks for 'apps' key absence)
- Return clear error with migration instructions when v1 config is detected
- Add comprehensive tests for config loading edge cases
- Fix false positive detection when v1 config contains 'version' or 'mcp' fields
Migration path for users:
1. Install v3.2.x to perform one-time auto-migration, OR
2. Manually edit ~/.cc-switch/config.json to v2 format
Rationale:
- Separates concerns: load() should be read-only, not perform side effects
- Fail-fast principle: unsupported formats should error immediately
- Simplifies code maintenance by removing migration logic from hot path
Tests added:
- load_v1_config_returns_error_and_does_not_write
- load_v1_with_extra_version_still_treated_as_v1
- load_invalid_json_returns_parse_error_and_does_not_write
- load_valid_v2_config_succeeds
Breaking Changes:
- Removed useAutoUsageQuery hook (119 lines)
- Unified all usage queries into single useUsageQuery hook
Technical Improvements:
- Eliminated duplicate state management (React Query + manual useState)
- Fixed single source of truth principle violation
- Replaced manual setInterval with React Query's built-in refetchInterval
- Reduced UsageFooter complexity by 28% (54 → 39 lines)
New Features:
- useUsageQuery now accepts autoQueryInterval option
- Automatic query interval control (0 = disabled, min 1 minute)
- Built-in lastQueriedAt timestamp from dataUpdatedAt
- Auto-query only enabled for currently active provider
Architecture Benefits:
- Single data source: manual and auto queries share same cache
- No more state inconsistency between manual/auto query results
- Leverages React Query's caching, deduplication, and background updates
- Cleaner separation of concerns
Code Changes:
- src/lib/query/queries.ts: Enhanced useUsageQuery with auto-query support
- src/components/UsageFooter.tsx: Simplified to use single query hook
- src/hooks/useAutoUsageQuery.ts: Deleted (redundant)
- All type checks passed
New Features:
- Users can configure auto-query interval in "Configure Usage Query" dialog
- Interval in minutes (0 = disabled, recommend 5-60 minutes)
- Auto-query only enabled for currently active provider
- Display last query timestamp in relative time format (e.g., "5 min ago")
- Execute first query immediately when enabled, then repeat at intervals
Technical Implementation:
- Backend: Add auto_query_interval field to UsageScript struct
- Frontend: Create useAutoUsageQuery Hook to manage timers and query state
- UI: Add auto-query interval input field in UsageScriptModal
- Integration: Display auto-query results and timestamp in UsageFooter
- i18n: Add Chinese and English translations
UX Improvements:
- Minimum interval protection (1 minute) to prevent API abuse
- Auto-cleanup timers on component unmount
- Silent failure handling for auto-queries, non-intrusive to users
- Prioritize auto-query results, fallback to manual query results
- Timestamp display positioned next to refresh button for better clarity
Fixed 5 hardcoded Chinese error messages to support bilingual display:
Backend changes (services):
- provider.rs: Fixed 4 error messages:
* Data format error when deserializing array (line 731)
* Data format error when deserializing single object (line 738)
* Regex initialization failure (line 1163)
* App type not found (line 1191)
- speedtest.rs: Fixed 1 error message:
* HTTP client creation failure (line 104)
All errors now use AppError::localized to provide both Chinese and English messages.
Impact:
- Users will now see properly localized error messages when testing usage scripts
- Error messages respect the application language setting
- Better user experience for English-speaking users
Fully internationalized the usage query feature to support both Chinese and English.
Frontend changes:
- Refactored UsageScriptModal to use i18n translation keys
- Replaced hardcoded Chinese template names with constants
- Implemented dynamic template generation with i18n support
- Internationalized all labels, placeholders, and code comments
- Added template name mapping for translation
Backend changes:
- Replaced all hardcoded Chinese error messages in usage_script.rs
- Converted 33 error instances from AppError::Message to AppError::localized
- Added bilingual error messages for runtime, parsing, HTTP, and validation errors
Translation updates:
- Added 11 new translation key pairs to zh.json and en.json
- Covered template names, field labels, placeholders, and code comments
Impact:
- 100% i18n coverage for usage query functionality
- All user-facing text and error messages now support language switching
- Better user experience for English-speaking users
- Add private helper method `execute_and_format_usage_result` to eliminate code duplication
- Refactor `query_usage` to use helper method instead of duplicating result processing
- Add new `test_usage_script` method to test temporary script without saving
- Add backend command `test_usage_script` accepting script content as parameter
- Register new command in lib.rs invoke_handler
- Add frontend `usageApi.testScript` method to call the new backend API
- Update `UsageScriptModal.handleTest` to test current editor content instead of saved script
- Improve DX: users can now test script changes before saving
Implement Solution A (complete deferred submission) for custom endpoint
management, replacing the dual-mode system with unified local staging.
Changes:
- Remove immediate backend saves from EndpointSpeedTest
* handleAddEndpoint: local state update only
* handleRemoveEndpoint: local state update only
* handleSelect: remove lastUsed timestamp update
- Add explicit clear detection in ProviderForm
* Distinguish "user cleared endpoints" from "user didn't modify"
* Pass empty object {} as clear signal vs null for no-change
- Fix mergeProviderMeta to handle three distinct cases:
* null/undefined: don't modify endpoints (no meta sent)
* empty object {}: explicitly clear endpoints (send empty meta)
* with data: add/update endpoints (overwrite)
Fixed Critical Bug:
When users deleted all custom endpoints, changes were not saved because:
- draftCustomEndpoints=[] resulted in customEndpointsToSave=null
- mergeProviderMeta(meta, null) returned undefined
- Backend interpreted missing meta as "don't modify", preserving old values
Solution:
Detect when user had endpoints and cleared them (hadEndpoints && length===0),
then pass empty object to mergeProviderMeta as explicit clear signal.
Architecture Improvements:
- Transaction atomicity: all fields submitted together on form save
- UX consistency: add/edit modes behave identically
- Cancel button: true rollback with no immediate saves
- Code simplification: removed ~40 lines of immediate save error handling
Testing:
- TypeScript type check: passed
- Rust backend tests: 10/10 passed
- Build: successful
