Step 1.4: ignore in-workspace pnpm store in CI

The Gitea runner places the pnpm store inside the workspace, so
prettier --check failed on its files.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

.gitignore

@@ -5,3 +5,4 @@ coverage/
 .env
 .env.local
 .DS_Store
+.pnpm-store/

.prettierignore

@@ -1,2 +1,3 @@
 pnpm-lock.yaml
 memory-bank/
+.pnpm-store/

DECISIONS.md

@@ -20,3 +20,8 @@ Implementation decisions not spelled out in `memory-bank/implementation-plan.md`
 
 - **Vitest projects**: the root `vitest.config.ts` treats each `apps/*` and `packages/*` folder as a project, so `pnpm test` runs every package's tests. Packages can add their own `vitest.config.ts` when they need a different environment.
 - **Tests live in each package's `test/` folder** and are included in that package's tsconfig, so `pnpm typecheck` covers them.
+
+## Step 1.4
+
+- **CI runs on Gitea Actions** (`.gitea/workflows/ci.yml`): install with a frozen lockfile, then typecheck, lint and test.
+- **`.pnpm-store/` is ignored** by Prettier, ESLint and git. On the Gitea runner, pnpm puts its store inside the workspace, and `prettier --check` failed on the store's files (CI run #1).

eslint.config.js

@@ -8,7 +8,7 @@ import tseslint from "typescript-eslint";
 const impureMessage = "Not allowed in pure packages; pass time and seeds in as arguments.";
 
 export default tseslint.config(
-  { ignores: ["**/node_modules/**", "**/dist/**", "**/coverage/**"] },
+  { ignores: ["**/node_modules/**", "**/dist/**", "**/coverage/**", ".pnpm-store/**"] },
   js.configs.recommended,
   ...tseslint.configs.recommended,
   {