bab-app/docs/summaries/handoff-2026-03-15-build-fixes.md

# Session Handoff: Build Fixes & Dev Environment
**Date:** 2026-03-15
**Session Duration:** ~2 hours
**Session Focus:** Resolve all TypeScript/ESLint build errors from dependency updates; fix dev server startup
**Context Usage at Handoff:** Medium

## What Was Accomplished

1. Fixed 30 TypeScript errors (14 files) → build now passes with 0 errors
2. Fixed 12 ESLint problems (6 errors, 6 warnings) → 0 remaining
3. Fixed `quasar dev` startup error (`FlatESLint is not a constructor`) → downgraded ESLint v10→v9
4. Fixed missing Appwrite env vars in `.env.local` → app connects to backend on dev

## Exact State of Work in Progress

- **Build**: CLEAN — `yarn quasar build` exits 0, no TS or ESLint errors
- **Dev server**: FUNCTIONAL — `quasar dev` starts without errors; ESLint inline checking via `vite-plugin-checker` is restored
- **Runtime**: UNTESTED this session — app has not been manually tested against the dev Appwrite backend

## Decisions Made This Session

- **`as unknown as Type` for all Appwrite store casts** — CONFIRMED: Appwrite v23 made `DefaultDocument` strict; it no longer overlaps domain types, so the double-cast is required. Applied to: `boat.ts`, `interval.ts`, `intervalTemplate.ts`, `reservation.ts`, `task.ts`
- **ESLint downgraded v10.0.3 → v9.39.4** — CONFIRMED: `vite-plugin-checker` v0.12.0 calls `FlatESLint` which was merged back into `ESLint` in v10; v9 preserves the API. Also downgraded `@eslint/js` (v10→v9) and `eslint-plugin-vue` (v10→v9)
- **`getWeekdaySkips` removed** — CONFIRMED: removed from `@quasar/quasar-ui-qcalendar` API; `createDayList` now takes `weekdays` array directly as 4th param (previously took `weekdaySkips` computed value)
- **`subtasks` removed from TaskCardComponent template** — ASSUMED SAFE: `Task` type has no `subtasks` field; template refs were dead code. See open question.
- **`no-debugger: 'off'`** — CONFIRMED: hardcoded because `process` is not available in ESLint globals when linting `.js` files (config file context)
- **`.env.local` variable names corrected** — CONFIRMED: file had `VITE_APPWRITE_ENDPOINT` / `VITE_APPWRITE_PROJECT`; `appwrite.ts` reads `VITE_APPWRITE_API_ENDPOINT` / `VITE_APPWRITE_API_PROJECT`

## Key Numbers Generated or Discovered This Session

- TypeScript errors at session start: 30 (across 14 files)
- ESLint problems at session start: 12 (6 errors, 6 warnings)
- TypeScript errors at session end: 0
- ESLint problems at session end: 0
- ESLint: v10.0.3 → v9.39.4
- `@eslint/js`: v10 → v9
- `eslint-plugin-vue`: v10 → v9
- `register-service-worker`: newly added (was missing from package.json)

## Conditional Logic Established

- IF Appwrite SDK returns `DefaultDocument` THEN cast via `as unknown as DomainType` BECAUSE v23 `DefaultDocument` is strict and no longer assignable to domain types that extend `Partial<Models.Document>`
- IF `vite-plugin-checker` is v0.12.x THEN ESLint must be v9.x BECAUSE v0.12.x uses `FlatESLint` constructor removed in ESLint v10
- IF `createDayList` is called from qcalendar THEN pass `weekdays` array as 4th arg directly BECAUSE `getWeekdaySkips` was removed from the qcalendar public API
- IF `.env.local` is updated THEN variable names must match `import.meta.env.VITE_APPWRITE_API_ENDPOINT` / `VITE_APPWRITE_API_PROJECT` as read in `src/boot/appwrite.ts`

## Files Created or Modified

| File Path | Action | Description |
|-----------|--------|-------------|
| `src/stores/boat.ts` | Modified | `as unknown as Boat[]` |
| `src/stores/interval.ts` | Modified | `as unknown as Interval` (3 places) |
| `src/stores/intervalTemplate.ts` | Modified | Map callback cast + `as unknown as IntervalTemplate` (3 places); `timeTuple` cast |
| `src/stores/reservation.ts` | Modified | `as unknown as Reservation` (5 places) |
| `src/stores/task.ts` | Modified | `as unknown as Task[]`, `TaskTag[]`, `SkillTag[]`, `Task` (5 places) |
| `src/stores/sampledata/schedule.ts` | Modified | `id`→`$id`, `blocks`→`timeTuples`, removed `reservationDate` |
| `src/components/boat/BoatPreviewComponent.vue` | Modified | `boat.id` → `boat.$id` |
| `src/components/scheduling/boat/BoatScheduleTableComponent.vue` | Modified | `block.id`→`block.$id`; `NodeJS.Timeout`→`ReturnType<typeof setInterval>`; ternary→if/else |
| `src/components/scheduling/boat/CalendarHeaderComponent.vue` | Modified | Removed `getWeekdaySkips` import+computed; `createDayList` now passes `weekdays` directly |
| `src/components/task/TaskCardComponent.vue` | Modified | Removed `defineProps` explicit import; removed `subtasks` template refs |
| `src/components/task/TaskListComponent.vue` | Modified | `task.id` → `task.$id` |
| `src/components/task/TaskTableComponent.vue` | Modified | Removed `defineProps` from explicit import |
| `src/components/ResourceScheduleViewerComponent.vue` | Modified | Removed `|| undefined`; `catch { }`; removed stale eslint-disable comments |
| `src/pages/LoginPage.vue` | Modified | `catch { }` |
| `src/pages/schedule/ManageCalendar.vue` | Modified | `block.id` → `block.$id` |
| `src/boot/appwrite.ts` | Modified | Removed stale `console.log(API_ENDPOINT)` |
| `eslint.config.js` | Modified | `no-debugger` hardcoded to `'off'` |
| `quasar.config.ts` | Modified | ESLint checker restored (had been temporarily removed) |
| `package.json` / `yarn.lock` | Modified | ESLint v10→v9; `@eslint/js` v10→v9; `eslint-plugin-vue` v10→v9; added `register-service-worker` |
| `.env.local` | Modified | Variable names corrected: `VITE_APPWRITE_ENDPOINT`→`VITE_APPWRITE_API_ENDPOINT`, `VITE_APPWRITE_PROJECT`→`VITE_APPWRITE_API_PROJECT`; endpoint URL updated to include `/v1` |
| `docs/summaries/handoff-2026-03-15-build-fixes.md` | Created | This file |
| `docs/archive/handoffs/handoff-2026-03-15-dependency-updates.md` | Archived | Superseded by this handoff |

## What the NEXT Session Should Do

1. **First**: Run `quasar dev` and manually test the login flow against the dev Appwrite backend to validate v23 API calls work at runtime
2. **Validate**: Boat listing, reservation creation/cancellation, interval loading — confirm no runtime errors from the v23 positional-param deprecations
3. **Commit**: Stage all modified files and commit as `"fix: Resolve build errors from dependency updates"` (single clean commit covering all TS/ESLint/qcalendar/env fixes)
4. **Optional**: Migrate Appwrite calls from deprecated positional-param style to object-param style (affects all stores — low priority, they still work)
5. **Optional**: Add `subtasks?: Task[]` to `Task` interface in `src/stores/task.ts` if that feature is planned

## Open Questions Requiring User Input

- [ ] `task.subtasks` removed from `TaskCardComponent` template — should `subtasks?: Task[]` be added to the `Task` interface for future use, or is subtask support not planned?
- [ ] Appwrite v23 deprecated positional-param overloads (hints in every store call). Migrate now or leave for later?

## Assumptions That Need Validation

- ASSUMED: Appwrite v23 positional-param API calls behave identically at runtime to v14 — validate by doing a full login + reservation flow against the dev backend
- ASSUMED: `subtasks` in `TaskCardComponent` was dead/future code — no user confirmed this

## What NOT to Re-Read

- `docs/archive/handoffs/handoff-2026-03-15-dependency-updates.md` — archived; superseded by this file
- `docs/archive/handoffs/handoff-2026-03-15-auth-magic-link.md` — archived; auth work complete

## Files to Load Next Session

- `src/stores/task.ts` — if adding `subtasks` to Task interface
- `src/boot/appwrite.ts` — if migrating to Appwrite v23 object-param style
- Any store file (`boat.ts`, `interval.ts`, `reservation.ts`, etc.) — if migrating Appwrite calls