Merge branch 'main' into hermes/actions-cache-hardening-20260512

Resolve PR #90 cache-removal conflicts after pnpm migration.
Keep shared Actions cache removal, preserve pnpm workflow updates, and fix nested pnpm enable steps.

Author: prd-carapulse[bot]

.github/actions/install/action.yml

@@ -4,14 +4,18 @@ runs:
   using: composite
 
   steps:
+    - name: Install pnpm
+      uses: pnpm/action-setup@b906affcce14559ad1aafd4ab0e942779e9f58b1 # v4
+      with:
+        run_install: false
+
     - name: Install node
       uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4
       with:
-        node-version: 18
-
+        node-version: 22.13
     - name: Install Foundry
       uses: foundry-rs/foundry-toolchain@c7450ba673e133f5ee30098b3b54f444d3a2ca2d # v1
 
     - name: Install dependencies
-      run: yarn install --frozen-lockfile
+      run: pnpm install --frozen-lockfile
       shell: bash

.github/workflows/formatting.yml

@@ -21,4 +21,4 @@ jobs:
       - uses: ./.github/actions/install
 
       - name: Run Linter
-        run: yarn lint
+        run: pnpm run lint

.github/workflows/foundry.yml

@@ -24,7 +24,7 @@ jobs:
       - uses: ./.github/actions/install
 
       - name: Build contracts via IR & check sizes
-        run: yarn build:forge --force --sizes # don't use compilation cache
+        run: pnpm run build:forge --force --sizes # don't use compilation cache
 
   build-no-ir:
     name: Compilation (without IR)
@@ -39,7 +39,7 @@ jobs:
       - uses: ./.github/actions/install
 
       - name: Build contracts without IR
-        run: yarn build:forge
+        run: pnpm run build:forge
         env:
           FOUNDRY_PROFILE: test
 
@@ -74,7 +74,7 @@ jobs:
       - uses: ./.github/actions/install
 
       - name: Run tests in ${{ matrix.type }} mode
-        run: yarn test:forge -vvv
+        run: pnpm run test:forge -vvv
         env:
           FOUNDRY_FUZZ_RUNS: ${{ matrix.fuzz-runs }}
           FOUNDRY_FUZZ_MAX_TEST_REJECTS: ${{ matrix.max-test-rejects }}

.github/workflows/hardhat.yml

@@ -24,7 +24,7 @@ jobs:
       - uses: ./.github/actions/install
 
       - name: Build contracts
-        run: yarn build:hardhat --force # don't use compilation cache
+        run: pnpm run build:hardhat --force # don't use compilation cache
 
       - name: Run hardhat tests
-        run: yarn test:hardhat
+        run: pnpm run test:hardhat

.github/workflows/npm-release.yml

@@ -19,10 +19,10 @@ jobs:
       - uses: ./.github/actions/install
 
       - name: Build package
-        run: yarn build:pkg
+        run: pnpm run build:pkg
 
       - name: Publish to npm
         run: |
           cp LICENSE README.md package.json dist/
           echo "//registry.npmjs.org/:_authToken=${{ secrets.NPM_TOKEN }}" > ~/.npmrc
-          yarn publish dist --access public --ignore-scripts
+          pnpm run publish dist --access public --ignore-scripts

package.json

@@ -3,15 +3,15 @@
     "prepare": "husky install && forge install",
     "build:forge": "forge build",
     "build:hardhat": "hardhat compile",
-    "build:blue": "yarn --cwd lib/morpho-blue/ build:forge",
-    "build:irm": "yarn --cwd lib/morpho-blue-irm/ build:forge",
+    "build:blue": "pnpm --dir lib/morpho-blue/ run build:forge",
+    "build:irm": "pnpm --dir lib/morpho-blue-irm/ run build:forge",
     "typecheck": "tsc --noEmit",
-    "test:forge": "yarn build:blue && FOUNDRY_PROFILE=test forge test",
-    "test:hardhat": "yarn build:blue && yarn build:irm && hardhat test",
-    "lint": "yarn lint:forge && yarn lint:ts",
+    "test:forge": "pnpm run build:blue && FOUNDRY_PROFILE=test forge test",
+    "test:hardhat": "pnpm run build:blue && pnpm run build:irm && hardhat test",
+    "lint": "pnpm run lint:forge && pnpm run lint:ts",
     "lint:ts": "prettier --check test/hardhat",
     "lint:forge": "forge fmt --check",
-    "lint:fix": "yarn lint:forge:fix && yarn lint:ts:fix",
+    "lint:fix": "pnpm run lint:forge:fix && pnpm run lint:ts:fix",
     "lint:ts:fix": "prettier --write test/hardhat",
     "lint:forge:fix": "forge fmt",
     "clean": "hardhat clean && forge clean"
@@ -72,5 +72,9 @@
       "^\\."
     ],
     "importOrderSeparation": true
+  },
+  "packageManager": "pnpm@11.0.9",
+  "engines": {
+    "node": ">=22.13.0"
   }
 }