chore: migrate development workflow to Bun

.github/workflows/ci.yml

@@ -17,17 +17,16 @@ jobs:
       - name: Check out repository
         uses: actions/checkout@v4
 
-      - name: Set up Node.js
-        uses: actions/setup-node@v4
+      - name: Set up Bun
+        uses: oven-sh/setup-bun@v2
         with:
-          node-version: 22
-          cache: npm
+          bun-version: 1.3.14
 
       - name: Install dependencies
-        run: npm ci
+        run: bun install --frozen-lockfile
 
       - name: Typecheck
-        run: npm run typecheck
+        run: bun run typecheck
 
       - name: Check package contents
-        run: npm pack --dry-run
+        run: bun pm pack --dry-run

AGENTS.md

@@ -8,11 +8,11 @@ Guidance for AI coding agents working in this repository.
 
 ## Development commands
 
-- Install dependencies: `npm install`
-- Type-check the project: `npm run typecheck`
+- Install dependencies: `bun install`
+- Type-check the project: `bun run typecheck`
 - Test the extension in a local pi session: `pi -e ./extensions/git-diff-sidebar.ts`
 
-Run `npm run typecheck` before considering code changes complete.
+Run `bun run typecheck` before considering code changes complete.
 
 ## Repository conventions
 

CONTRIBUTING.md

@@ -4,9 +4,11 @@ Thanks for helping improve `forjd-pi`.
 
 ## Development setup
 
+This repository uses Bun for local development and CI. Pi extensions should remain Node-compatible at runtime, so avoid Bun-only APIs in extension code.
+
 ```bash
-npm install
-npm run typecheck
+bun install
+bun run typecheck
 ```
 
 To test the package set in pi without installing it globally:
@@ -25,8 +27,8 @@ pi -e ./extensions/git-diff-sidebar.ts
 
 - Keep extensions small and focused.
 - Prefer passive UI that does not interrupt the main editor unless a command explicitly asks for interaction.
-- Run `npm run typecheck` before opening a PR.
-- GitHub Actions runs `npm ci`, `npm run typecheck`, and `npm pack --dry-run` on pushes and pull requests targeting `main`.
+- Run `bun run typecheck` before opening a PR.
+- GitHub Actions runs `bun install --frozen-lockfile`, `bun run typecheck`, and `bun pm pack --dry-run` on pushes and pull requests targeting `main`.
 - Update the README when adding commands, configuration, package contents, or visible UI changes.
 
 ## Security

README.md

@@ -33,7 +33,7 @@ This package bundles the Forjd Git diff sidebar plus three cloned pi packages:
 │ 7 new                              │
 │ +2857 -0  7 files • just now       │
 ├────────────────────────────────────┤
-│ ? package-lock.json       +2016 -0 │
+│ ? bun.lock                +2016 -0 │
 │ ? extensions/git-diff...   +732 -0 │
 │ ? README.md                 +51 -0 │
 │ ? package.json              +34 -0 │
@@ -97,13 +97,15 @@ The pi manifest is declared in `package.json` and loads extension, skill, and pr
 
 ## Development
 
+This repository uses Bun for local development and CI. Pi still loads extensions with a Node-compatible runtime, so extension code should keep using Node-compatible APIs and avoid Bun-only runtime globals.
+
 ```bash
-npm install
-npm run typecheck
-npm pack --dry-run
+bun install
+bun run typecheck
+bun pm pack --dry-run
 ```
 
-GitHub Actions runs `npm ci`, `npm run typecheck`, and `npm pack --dry-run` on pushes and pull requests targeting `main`. The workflow can also be run manually from the Actions tab.
+GitHub Actions runs `bun install --frozen-lockfile`, `bun run typecheck`, and `bun pm pack --dry-run` on pushes and pull requests targeting `main`. The workflow can also be run manually from the Actions tab.
 
 ## Roadmap