prosolis 660f00d452 Phase 7: browser-side spell check (nspell, en-US)
Vendored Hunspell en.aff/en.dic into web/public/dictionaries/en/ (served as a
static asset + embedded in the binary, kept out of the JS bundle). dictionary-en
moved to a devDep — only used to source the files.

- useSpellChecker (App-level, loads once/session): fetches the dict, builds an
  nspell instance, replays a localStorage personal word list; addWord persists
  and bumps a version so consumers re-decorate. Ambient types in
  src/types/nspell.d.ts (the package ships none).
- SpellCheck Tiptap extension: misspellings as ProseMirror decorations (no
  stored marks), recomputed on edit / caret move / checker swap. Latin-only
  tokenizer so CJK is never flagged; skips short tokens + all-caps acronyms;
  exempts the caret word to avoid mid-typing jitter. Reuses mapOffset (now
  exported from SuggestionHighlight); wordAt resolves the exact span on click.
- MisspellCard: soft rose wavy underline, bilingual popover with up to 5 nspell
  corrections (click to replace) + add-to-dictionary. Closes on outside-pointer,
  edit, or doc switch.

Chinese spell check intentionally omitted — nspell is dictionary-based and
English-only; Chinese typos (homophone 别字) need an LLM, out of v1 scope.

tsc/vite/go build+vet clean; live server serves both dict files; nspell
behavior smoke-tested.

Claude-Session: https://claude.ai/code/session_016Yr6jELuRc7hyzYLccQKZd
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🌸 Petal

A self-hosted, privacy-first writing editor with warm bubbly design, auto-save, and local-LLM grammar/ESL suggestions. See petal-spec.md for the full design spec and BUILD_PLAN.md for build progress.

Stack

Go + chi backend · SQLite (modernc, pure Go) · React + Vite + Tiptap + Tailwind v4 frontend · local vLLM/Ollama for AI suggestions. Single-binary deployment (frontend embedded via go:embed).

Local development

Two processes during development:

# 1. Backend (serves /api on :8080)
go run ./cmd/server

# 2. Frontend dev server (HMR on :5173, proxies /api → :8080)
cd web && npm install && npm run dev

Open http://localhost:5173 while developing.

Production build (single binary)

cd web && npm run build      # emits web/dist (embedded by the Go binary)
cd .. && go build -o petal ./cmd/server
./petal                      # serves UI + API on :8080

Configuration is via environment variables — copy .env.example to .env.

Status

Early build, multi-session. Auth (Authentik), Copyleaks plagiarism, and Docker/Traefik deployment are deferred — see BUILD_PLAN.md.

Description
Petal is a self-hosted, privacy-first writing editor for an ESL user. It replaces Grammarly with a warm, bubbly web app that combines Tiptap rich text editing, auto-save cloud storage, and periodic AI-powered grammar/ESL suggestions backed by a local vLLM inference endpoint.
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