docs(plan): v1.0 cycle — fases 17–20 (versioning + list flow + emojis + euskera)

Four planned-fase docs for the first tagged release.

- Fase 17 — semver git tags + CHANGELOG.md (Keep-a-Changelog, [new]/
  [fix]/[tweak] prefixes), one big v0.0.0-beta backfill block covering
  Fases 0–16, About-modal in /settings rendering bundled CHANGELOG via
  ?raw import, deploy-script tag check + tag column in .deploys.log.
- Fase 18 — shopping list flow: required title (client + DB tighten),
  per-collective per-prefix #N auto-numbering parsed from typed title,
  collectives.default_list_title, collective_list_titles catalog + admin
  RPCs, autocomplete union (catalog + last-10). Migration 027.
- Fase 19 — EMOJI_CATALOG with faces/food/animals/objects categories
  (~280 codepoints, Unicode 14 baseline for iOS<17 compat), new
  EmojiPicker.svelte replacing the 8-emoji hardcoded selector at 4
  sites. No migration.
- Fase 20 — Euskera locale: messages/eu.json via machine-translate
  seed flagged with [needs review], users.language check constraint
  extended to ('en','es','eu'), accept-language parser + selector in
  /settings. Migration 028. v1.0.0 tag lands at the end of this fase.

README + CLAUDE.md updated with the v1.0 cycle pointers.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

CLAUDE.md

@@ -10,6 +10,8 @@ This file provides guidance to Claude Code (claude.ai/code) when working with co
 
 **Fase 16: loading spinner** — `Spinner.svelte` (sizes sm/md/lg = 16/24/40px, `currentColor` for theme, `motion-reduce:animate-none`, `role="status"` + sr-only `m.loading()`) integrated at 7 loading sites (auth splash + search + notes archive + create-collective modal + manage page: members-list / invite generator / add-common-item button). No DB migration; reuses existing `m.loading()`. Added 5 Vitest unit (SP-U-01..05) + 3 Playwright e2e (SP-E-01..03). Vitest config gained `resolve.conditions: ['browser']` + `server.deps.inline: [/^svelte/]` so Svelte 5's `mount()` resolves the browser entry; see `docs/history/fase-16-spinner.md`. **Final cumulative MVP2 (fases 9–16): 177 pgTAP + 179 Vitest integration + 52 Vitest unit + 96 Playwright + 1 gated rate-limit = 505 tests green; 3 skipped.**
 
+**v1.0 — planned (📋):** four fases on `mvp2` branch (will retag at the end). Aimed at producing the first tagged release: **Fase 17 versioning** — git tags (`vX.Y.Z` semver), `CHANGELOG.md` in repo root (Keep-a-Changelog format, `[new]/[fix]/[tweak]` prefixes), one big `[v0.0.0-beta]` backfill section covering Fases 0–16, About-modal in `/settings` rendering bundled CHANGELOG via `?raw` import, deploy-script tag check + tag column in `.deploys.log` (`plan/fase-17-versioning-changelog.md`) | **Fase 18 shopping list flow** — required title (client + DB tightening), `#N` auto-numbering parsed from prefix per collective, `collectives.default_list_title` + `collective_list_titles` catalog with admin-only RPCs, autocomplete union catalog + last-10 titles (`plan/fase-18-shopping-list-flow.md`, migration 027) | **Fase 19 emoji avatars** — `EMOJI_CATALOG` lazy-load per category (faces / food / animals / objects, ~280 codepoints, Unicode 14 baseline for iOS<17 compat), new `EmojiPicker.svelte` replacing the 8-emoji hardcoded selector at 4 sites (`plan/fase-19-emoji-avatars.md`, no migration) | **Fase 20 Euskera locale** — `messages/eu.json` via machine-translate seed + `[needs review]` marker, `users.language` check constraint extended to `('en','es','eu')`, `accept-language` parser + selector in `/settings`; v1.0.0 tag lands at the end of this fase (`plan/fase-20-euskera-locale.md`, migration 028).
+
 ## Documentation Map
 
 - `README.md` — full development plan, confirmed tech stack, Justfile reference, technical warnings