v0.8.30

- Fix: `graphify install --project --platform antigravity` now writes Antigravity's always-on layer (`.agents/rules/graphify.md` + `.agents/workflows/graphify.md`), not just the skill. The project-scoped path went through the skill-only branch and skipped them, even though the project uninstall removes them.
- Feat: close the Read-tool graph bypass. The `PreToolUse` nudge previously only fired on Bash search (`grep`/`rg`/`find`); an agent answering a question by reading many source files through the native `Read` tool (or `Glob`) slipped past it. A new `Read|Glob` hook nudges toward `graphify query` when `graphify-out/graph.json` exists, only for a source/doc file outside `graphify-out/`, and never blocks (#1114).
- Feat: add an `anthropic` optional extra (and include it in `[all]`) so the `claude` backend is installable like every other one: `uv tool install "graphifyy[anthropic]"`. Previously it was the only backend with no extra, so a user with `ANTHROPIC_API_KEY` set could not satisfy it without `--with anthropic`. The backend package-missing errors now point at `uv tool install "graphifyy[<extra>]"` (the isolated-venv path) rather than only `pip install`.