Refactor: Code cleanup and localStorage consolidation
This commit includes comprehensive codebase cleanup and refactoring:
## Code Cleanup
- Remove dead TypeScript code (types/monitoring.ts - 194 lines duplicate)
- Remove unused Go functions (GetClusterNodes, MigratePassword, GetClusterHealthInfo)
- Clean up commented-out code blocks across multiple files
- Remove unused TypeScript exports (helpTextClass, private tag color helpers)
- Delete obsolete test files and components
## localStorage Consolidation
- Centralize all storage keys into STORAGE_KEYS constant
- Update 5 files to use centralized keys:
* utils/apiClient.ts (AUTH, LEGACY_TOKEN)
* components/Dashboard/Dashboard.tsx (GUEST_METADATA)
* components/Docker/DockerHosts.tsx (DOCKER_METADATA)
* App.tsx (PLATFORMS_SEEN)
* stores/updates.ts (UPDATES)
- Benefits: Single source of truth, prevents typos, better maintainability
## Previous Work Committed
- Docker monitoring improvements and disk metrics
- Security enhancements and setup fixes
- API refactoring and cleanup
- Documentation updates
- Build system improvements
## Testing
- All frontend tests pass (29 tests)
- All Go tests pass (15 packages)
- Production build successful
- Zero breaking changes
Total: 186 files changed, 5825 insertions(+), 11602 deletions(-)
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