chore: migrate formatting to rs fmt

.agents/skills/rstack-cli-best-practices/SKILL.md

@@ -7,7 +7,7 @@ description: Guidance on using Rstack CLI, including `rs` commands, the `rstack.
 
 Rstack CLI is the `rstack` package, exposed through the `rs` binaries. It provides one CLI, one config file, and a consistent workflow for the Rstack JavaScript toolchain.
 
-It covers web app, library, docs, test, lint, and staged-file workflows.
+It covers web app, library, docs, test, lint, formatting, Git hook, and staged-file workflows.
 
 ## Commands
 
@@ -22,11 +22,13 @@ Use `rs -h` for top-level help, and `rs <command> -h` for command help where sup
 | `rs doc`     | Serve or build docs              | Rspress         | `define.doc`    |
 | `rs test`    | Run tests                        | Rstest          | `define.test`   |
 | `rs lint`    | Lint code                        | Rslint          | `define.lint`   |
+| `rs fmt`     | Format code                      | Prettier        | `define.fmt`    |
+| `rs setup`   | Install project-local Git hooks  | None            | None            |
 | `rs staged`  | Run tasks on staged Git files    | lint-staged     | `define.staged` |
 
 Key behavior:
 
-- `rs test` extends `define.app` through `@rstest/adapter-rsbuild` and `define.lib` through `@rstest/adapter-rslib` unless `define.test` already sets `extends`.
+- Unless `define.test` already sets `extends`, `rs test` extends `define.app` through `@rstest/adapter-rsbuild` or falls back to `define.lib` through `@rstest/adapter-rslib`. The app config takes precedence when both are defined.
 - `rs doc` requires the optional `@rspress/core` dependency.
 
 ## rstack.config.ts
@@ -52,6 +54,7 @@ define.test({
 - `define.doc(config)`: Rspress config for `rs doc`; Docs: https://rspress.rs/api/config/config-basic
 - `define.test(config)`: Rstest config for `rs test`; Docs: https://rstest.rs/config/
 - `define.lint(config)`: Rslint config for `rs lint`; Docs: https://rslint.rs/config/
+- `define.fmt(config)`: Formatting options for `rs fmt`.
 - `define.staged(config)`: lint-staged config for `rs staged`; accepts `Record<string, string | string[]>`.
 
 ### Lazy Configuration
@@ -75,9 +78,15 @@ Prefer Rstack-exported paths:
 
 | Instead of                | Prefer                   |
 | ------------------------- | ------------------------ |
+| `@rsbuild/core`           | `rstack/app`             |
+| `@rslib/core`             | `rstack/lib`             |
 | `@rstest/core`            | `rstack/test`            |
 | `@rslint/core`            | `rstack/lint`            |
 | `@rsbuild/core/types`     | `rstack/types`           |
 | `@rslib/core/types`       | `rstack/types`           |
 | `@rstest/core/globals`    | `rstack/test/globals`    |
 | `@rstest/core/importMeta` | `rstack/test/importMeta` |
+
+## Git Hooks
+
+Use [`rs setup`](https://rstack.rs/guide/cli/setup) for project-local Git hooks, commonly with `rs staged` in a `pre-commit` hook.

.vscode/extensions.json

@@ -1,3 +1,3 @@
 {
-  "recommendations": ["rstack.rslint", "esbenp.prettier-vscode"]
+  "recommendations": ["rstack.rslint"]
 }

.vscode/settings.json

@@ -1,5 +1,4 @@
 {
   "search.useIgnoreFiles": true,
-  "editor.defaultFormatter": "esbenp.prettier-vscode",
   "cSpell.words": ["rstack", "rstackjs"]
 }

package.json

@@ -17,8 +17,8 @@
   "scripts": {
     "build": "rs lib",
     "dev": "rs lib -w",
-    "lint": "rs lint && prettier -c .",
-    "lint:write": "rs lint --fix && prettier -w .",
+    "lint": "rs lint && rs fmt --check",
+    "lint:write": "rs lint --fix && rs fmt",
     "test": "rs test",
     "prepare": "rs setup",
     "bump": "pnpx bumpp"
@@ -27,8 +27,7 @@
     "@types/node": "^24.13.2",
     "fresh-import": "^0.2.1",
     "jiti": "^2.7.0",
-    "prettier": "^3.9.4",
-    "rstack": "^0.2.0",
+    "rstack": "^0.3.2",
     "typescript": "^7.0.2"
   },
   "peerDependencies": {