# E-1b TypeScript Strict Compliance

**Date:** 2026-03-28
**Branch:** culurien

---

## Summary

Fixed all 217 TypeScript strict errors across `aggregator-web/src/` to achieve zero-error `npx tsc --noEmit` compliance. Vite production build also passes.

## Error Breakdown (Before)

| Error Code | Count | Description |
|------------|-------|-------------|
| TS6133 | 112 | Unused variables/imports |
| TS2339 | 49 | Property does not exist on type |
| TS2322 | 20 | Type mismatch |
| TS2353 | 3 | Unknown property in object literal |
| TS2345 | 3 | Argument type mismatch |
| TS7006 | 3 | Implicit `any` parameter |
| TS2367 | 4 | Unintentional type comparison |
| TS18046 | 3 | Value is of type `unknown` |
| TS2304 | 2 | Cannot find name |
| TS2300 | 2 | Duplicate identifier |
| TS2693 | 2 | Type used as value |
| TS2551 | 2 | Property typo suggestion |
| TS18048 | 2 | Possibly undefined |
| Other | 10 | Various (TS6196, TS6192, TS2865, TS2741, TS2614, TS2554, TS2352, TS2341, TS2312, TS2305) |

## Files Changed

### Type Definitions

| File | Change |
|------|--------|
| `src/types/index.ts` | Added `update_available?: boolean` to `Agent`; added `method`, `enabled` to `RateLimitConfig`; added `window_start`, `window_end` to `RateLimitUsage`; added `agent_name?`, `agent_hostname?`, `update_available?`, `current_version?`, `available_version?` to `DockerContainer` |
| `src/types/security.ts` | Made `EventFilters.date_range.end` optional; added `required?: boolean` to `SecuritySetting`; widened `options` to `string[] \| Array<{ label: string; value: string }>` |

### API & Library

| File | Change |
|------|--------|
| `src/lib/api.ts` | Removed unused type imports (`DockerContainer`, `DockerImage`, `DockerUpdateRequest`, `BulkDockerUpdateRequest`); added `nonce?` to `installUpdate` params; added `nonces?` to `updateMultipleAgents` params; expanded security overview subsystem types with `metrics?` and `checks?` |
| `src/lib/toast-with-logging.ts` | Replaced `toast.info`/`toast.warning` (don't exist in react-hot-toast) with custom icon wrappers |
| `src/lib/client-error-logger.ts` | Removed non-existent `ApiError` import; made `flushOfflineBuffer` public (was accessed externally) |

### Hooks

| File | Change |
|------|--------|
| `src/hooks/useAgentUpdate.ts` | Removed unused imports; replaced `toast.info` with `toast`; added error type guards; added `checkingUpdate` to return value |
| `src/hooks/useCommands.ts` | Removed unused import; fixed `UseMutationResult` return types from `void` to actual API response types |
| `src/hooks/useUpdates.ts` | Fixed `UseMutationResult` return types (same pattern as useCommands) |
| `src/hooks/useHeartbeat.ts` | Changed `interface extends` to `type = ... &` (TS2312); removed unused `queryClient`; fixed `query.state.data` access |
| `src/hooks/useSecuritySettings.ts` | Removed unused imports; removed unused `token` variable; fixed WebSocket 3-arg call to 2-arg |
| `src/hooks/useDocker.ts` | Removed unused type imports |
| `src/hooks/useRateLimits.ts` | Removed unused type imports |
| `src/hooks/useRegistrationTokens.ts` | Removed unused type imports |
| `src/hooks/useScanState.ts` | Removed `{ subsystem }` from toast options (not a valid Toast property) |

### Components

| File | Change |
|------|--------|
| `src/components/AgentHealth.tsx` | Removed unused `useMemo`, `refetch`, `getSecurityStatusDisplay` |
| `src/components/AgentStorage.tsx` | Removed unused `isError` |
| `src/components/AgentUpdate.tsx` | Removed unused `checkingUpdate`; replaced `toast.info` with `toast` |
| `src/components/AgentUpdatesEnhanced.tsx` | Removed unused imports; added missing `isLoadingLogs` state; fixed API method calls |
| `src/components/AgentUpdatesModal.tsx` | Removed unused `data` param |
| `src/components/ChatTimeline.tsx` | Removed 7 unused vars/functions; removed unused `Terminal` import; widened `NarrativeSummary.statusType` to include `'pending' \| 'info'` |
| `src/components/HistoryTimeline.tsx` | Removed unused `useEffect`, `Clock` |
| `src/components/RelayList.tsx` | Removed unused `React`; replaced `toast.info` with `toast`; fixed `error` type guard; fixed `version` undefined |
| `src/components/SetupCompletionChecker.tsx` | Removed unused `isSetupMode` state |
| `src/components/security/SecurityEvents.tsx` | Removed 6 unused imports; fixed `loading` to `isLoading`; fixed `date_range` spread to include required `start` |
| `src/components/security/SecurityCategorySection.tsx` | Resolved `SecuritySetting` naming conflict; removed unused state; added `value` type annotations |
| `src/components/security/SecuritySetting.tsx` | Resolved type/value import conflict; removed invalid `'checkbox'` comparisons; fixed options mapping |

### Pages

| File | Change |
|------|--------|
| `src/pages/Agents.tsx` | Removed 10 unused imports/vars; removed orphaned `setCurrentTime` interval; fixed `heartbeatStatus.until` null handling |
| `src/pages/Docker.tsx` | Removed 15 unused imports/vars; fixed property names (`image` to `image_name`, `tag` to `image_tag`, `container_id` to `id`) |
| `src/pages/RateLimiting.tsx` | Removed 9 unused imports/vars |
| `src/pages/SecuritySettings.tsx` | Removed 5 unused imports; fixed Error-to-string conversions; fixed status type mapping; fixed possibly-undefined chains |
| `src/pages/LiveOperations.tsx` | Removed 8 unused imports; fixed `string | undefined` to `Message`; fixed `Date` to `.toISOString()` |
| `src/pages/Settings.tsx` | Removed 6 unused imports/vars |
| `src/pages/settings/AgentManagement.tsx` | Removed 8 unused imports/vars |
| `src/pages/History.tsx` | Removed unused destructured vars |
| `src/pages/Setup.tsx` | Added `: string` type annotation to `line` parameter |
| `src/pages/TokenManagement.tsx` | Removed 3 unused imports/vars; fixed `never` type narrowing on token status |
| `src/pages/Updates.tsx` | Fixed `isLoading` to `isPending` (TanStack Query v5) |

## Verification

```
npx tsc --noEmit    → 0 errors (was 217)
vite build          → Success (676.66 kB bundle)
```

## Notes

- No `@ts-ignore` or `as any` casts were used
- No component behavior was changed — type fixes only
- `toast.info` / `toast.warning` don't exist in react-hot-toast; replaced with `toast()` using custom icons
- TanStack Query v5 renamed `isLoading` to `isPending` for mutations; two occurrences fixed
- Several type interfaces were missing fields that the API actually returns; these were added as optional fields