- add loadError ref to useProfileStore, rendered in MyProfileView
- replace raw fetch with useApiFetch in generateSummary/generateMissions
- remove await from sync-identity call (fire-and-forget)
- add stable id field to MissionPref, use as v-for key
- add test for load() error path
- Add useProfileStore (settings/profile) with load/save, all profile fields,
loading/saving/saveError state, and graceful resume sync-identity call
- Add MyProfileView.vue: Identity, Mission & Values, NDA Companies, and
Research Brief Preferences sections; autosave on NDA add/remove and
debounced autosave (400ms) on research checkbox changes
- Add GET/PUT /api/settings/profile endpoints to dev-api.py with YAML
field mapping (linkedin ↔ linkedin_url, candidate_*_focus ↔ *_focus,
mission_preferences dict ↔ list of {industry, note})
- 3 new store tests pass; full suite 26/26 green
