ci: add SwiftPM cache, fix Mintlify frontmatter (#12863)

* ci: add SwiftPM cache to macOS job, fix action description

* ci: fix frontmatter, remove DerivedData cache

.github/actions/setup-node-env/action.yml

@@ -1,7 +1,7 @@
 name: Setup Node environment
 description: >
-  Checkout with submodule retry, install Node 22, pnpm, optionally Bun,
-  and run pnpm install. Used by CI gates and test jobs.
+  Initialize submodules with retry, install Node 22, pnpm, optionally Bun,
+  and run pnpm install. Requires actions/checkout to run first.
 inputs:
   node-version:
     description: Node.js version to install.

.github/workflows/ci.yml

@@ -443,6 +443,14 @@ jobs:
           swiftlint --config .swiftlint.yml
           swiftformat --lint apps/macos/Sources --config .swiftformat
 
+      - name: Cache SwiftPM
+        uses: actions/cache@v4
+        with:
+          path: ~/Library/Caches/org.swift.swiftpm
+          key: ${{ runner.os }}-swiftpm-${{ hashFiles('apps/macos/Package.resolved') }}
+          restore-keys: |
+            ${{ runner.os }}-swiftpm-
+
       - name: Swift build (release)
         run: |
           set -euo pipefail

docs/ci.md

@@ -1,6 +1,6 @@
 ---
 title: CI Pipeline
-description: How the OpenClaw CI pipeline works and why jobs are ordered the way they are. Latest changes: Feb 09, 2026
+description: How the OpenClaw CI pipeline works and why jobs are ordered the way they are.
 ---
 
 # CI Pipeline
@@ -128,12 +128,15 @@ The analysis skips: `node_modules`, `dist`, `vendor`, `.git`, `coverage`,
 The `setup-node-env` composite action (`.github/actions/setup-node-env/`)
 handles the shared setup boilerplate:
 
-- Submodule checkout with retry (5 attempts)
+- Submodule init/update with retry (5 attempts, exponential backoff)
 - Node.js 22 setup
 - pnpm via corepack + store cache
 - Optional Bun install
 - `pnpm install` with retry
 
+The `macos` job also caches SwiftPM packages (`~/Library/Caches/org.swift.swiftpm`)
+to speed up dependency resolution.
+
 This eliminates ~40 lines of duplicated YAML per job.
 
 ## Push vs PR Behavior