feat: add 'tail' note type and unify LabNoteType definitions

[AdaInTheLab]

Summary

• Added "tail" as a new LabNoteType across the entire codebase
• Consolidated all scattered type definitions into a single source of truth (src/types/labNotes.ts)
• Fixed pre-existing type drift: "weather" was missing from UpsertBody, and "lore", "weather" were missing from ApiLabNote

What changed

• src/types/labNotes.ts — Added "tail" to LabNoteType union and ALLOWED_NOTE_TYPES set
• src/types/UpsertBody.ts — Added "weather" and "tail" to the type field union
• src/api/data/labNotesStore.ts — Added "lore", "weather", "tail" to ApiLabNote.type
• src/mappers/labNotesMapper.ts — Removed local duplicate LabNoteType, LabNoteStatus, and ALLOWED_NOTE_TYPES; now imports from types/labNotes.ts. Added "tail" category fallback in deriveType

Why

The mapper had a local copy of the type union that diverged from the canonical definition in types/labNotes.ts. Adding "tail" in one place but not the others caused type inconsistencies. This PR fixes the drift and ensures all four files reference or mirror the same set of allowed types.

Test plan

• npx tsc --noEmit — clean
• npm test — 41/41 passing
• Pre-commit hook passes

🤖 Generated with Claude Code

Co-Authored-By: Claude Opus 4.6 (1M context) noreply@anthropic.com

[github-actions]

😼 Carmel Judgment Stamp™

🟪 Carmel Judgment Stamp™
😼💬 "Hmm. Acceptable… for now."

PR: #25 — feat: add 'tail' note type and unify LabNoteType definitions
Author: @AdaInTheLab

This automated judgment has been issued by the Chief Judgment Office (CJO).