chore: update v3 release with main

.github/copilot-instructions.md

@@ -16,25 +16,26 @@ FAST (`@microsoft/fast`) is a Microsoft open-source monorepo for building W3C-st
 
 ## Packages
 
+Each package includes a DESIGN.md file, read that to gain a general understanding of the code for that package.
+
 | Package | Status | Purpose |
 |---|---|---|
 | `@microsoft/fast-element` | Stable (v2) | Core Web Component library |
 | `@microsoft/fast-html` | Alpha | Declarative HTML parser |
 | `@microsoft/fast-router` | Alpha | Web Component router |
 | `@microsoft/fast-build` | Prerelease | Declarative HTML server side renderer |
+| `@microsoft/fast-test-harness` | Prerelease | Testing utilities for FASTElement components |
 
-### Other packages
+### Sites
 
 | Package | Status | Purpose |
 |---|---|---|
-| `@microsoft/fast-bench` | Private (not published as a package) | Benchmarking utilities |
 | `sites/website` | Private (not published as a package) | Documentation website source |
-| `@microsoft/fast-ssr` | Alpha (not actively maintained) | Server-side rendering utilities |
+| `sites/benchmarks` | Private (not published as a package) | Benchmarking site |
 
 ### Example projects
 
 - `examples/todo-app/` — A simple To-Do app demonstrating FAST usage patterns.
-- `examples/ssr/` — Server-side rendering example using `@microsoft/fast-ssr`.
 
 ## Skills
 
@@ -93,7 +94,8 @@ packages/<package>/
 ```
 
 - Source files use **kebab-case**: `element-controller.ts`, `update-queue.ts`.
-- Test files use `*.pw.spec.ts` suffix, co-located next to the source they test.
+- Playwright test files use `*.pw.spec.ts` suffix, co-located next to the source they test.
+- Node test files use `*.spec.ts` suffix.
 
 ## Code Style
 
@@ -152,3 +154,5 @@ Before finishing any change, run these commands from the monorepo root and confi
 - [ ] `npm run test` — all tests pass
 - [ ] `npm run biome:check` — Biome linting and formatting pass
 - [ ] `npm run checkchange` — beachball change files exist for any `packages/*` changes
+
+Read the [shipping skill](./skills/shipping/SKILL.md) and ensure you have updated everything outlined in that file.

.github/skills/shipping/SKILL.md

@@ -180,9 +180,7 @@ If the breaking change is significant or requires multiple PRs, open a [discussi
 
 # Documentation
 
-Keep the website documentation in `sites/website/src/docs/` updated when making changes that affect public APIs, behavior, or usage patterns. The documentation is organized by version:
-
-- `sites/website/src/docs/2.x/` — Current version documentation (getting started, guides, advanced topics, API reference).
+After any changes ensure that the documentation is up to date, this includes the files DESIGN.md and README.md files for any packages/crates that have been modified. If your changes update or add to the public API, update the sites/website/src/docs/ files. Only update the latest version, these are denoted by major versions in their folder names inside the docs folder, 1.x, 2.x, etc., find the latest version of the docs and modify them if necessary.
 
 When adding or modifying exported APIs, run the website prebuild script to regenerate API documentation from the api-extractor output:
 

.github/workflows/cd-gh-pages.yml

@@ -13,18 +13,16 @@ permissions:
 jobs:
   build:
     runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        node: [22.x]
 
     steps:
     - uses: actions/checkout@v4
-    - name: Use Node.js ${{ matrix.node-version }}
-      uses: actions/setup-node@v4
       with:
-        node-version: ${{ matrix.node-version }}
         fetch-depth: 0
 
+    - uses: actions/setup-node@v6
+      with:
+        node-version: 22
+
     - name: Set Git User
       run: |
         git config --global user.name "${{ env.GITHUB_SERVICE_USER }}"

.github/workflows/ci-validate-platforms.yml

@@ -74,11 +74,11 @@ jobs:
         run: cargo install wasm-pack
 
       - name: Build workspaces
-        run: npx lage build ${{ github.event_name == 'pull_request' && '--since origin/main' || '' }}
+        run: npx lage build ${{ github.event_name == 'pull_request' && '--since origin/main' || '' }} --allow-no-target-runs
 
       - name: Install playwright dependencies and browsers
         run: |
           npx playwright install --with-deps
 
       - name: Run tests in all Packages
-        run: npx lage test:node test:playwright ${{ github.event_name == 'pull_request' && '--since origin/main' || '' }}
+        run: npx lage test:node test:playwright ${{ github.event_name == 'pull_request' && '--since origin/main' || '' }} --allow-no-target-runs

.github/workflows/ci-validate-pr.yml

@@ -58,14 +58,14 @@ jobs:
       run: cargo install wasm-pack
 
     - name: Build workspaces
-      run: npx lage build ${{ github.event_name == 'pull_request' && format('--since origin/{0}', github.event.pull_request.base.ref) || '' }}
+      run: npx lage build ${{ github.event_name == 'pull_request' && format('--since origin/{0}', github.event.pull_request.base.ref) || '' }} --allow-no-target-runs
 
     - name: Install playwright dependencies and browsers
       run: |
         npx playwright install --with-deps
 
     - name: Testing unit tests
-      run: npx lage test:node test:chromium ${{ github.event_name == 'pull_request' && format('--since origin/{0}', github.event.pull_request.base.ref) || '' }}
+      run: npx lage test:node test:chromium ${{ github.event_name == 'pull_request' && format('--since origin/{0}', github.event.pull_request.base.ref) || '' }} --allow-no-target-runs
 
     - name: Testing final validation
       run: npm run test:validation

change/@microsoft-fast-element-5636cb6f-65c6-4c40-b964-d6c4b4b054f6.json

@@ -0,0 +1,7 @@
+{
+  "type": "none",
+  "comment": "chore: replace rollup-plugin-filesize with esbuild bundle size reporting",
+  "packageName": "@microsoft/fast-element",
+  "email": "7559015+janechu@users.noreply.github.com",
+  "dependentChangeType": "none"
+}