fix(ci): Use root package-lock.json for workspace caching

- Update cache-dependency-path to use root package-lock.json
- Replace npm ci with npm install for workspace compatibility
- Remove agentic-synth/package-lock.json (not needed with workspaces)

Author: ruvnet

.github/workflows/agentic-synth-ci.yml

@@ -47,11 +47,11 @@ jobs:
         with:
           node-version: ${{ env.NODE_VERSION }}
           cache: 'npm'
-          cache-dependency-path: ${{ env.PACKAGE_PATH }}/package-lock.json
+          cache-dependency-path: package-lock.json
 
       - name: Install dependencies
         working-directory: ${{ env.PACKAGE_PATH }}
-        run: npm ci
+        run: npm install
 
       - name: Run TypeScript type checking
         working-directory: ${{ env.PACKAGE_PATH }}
@@ -88,11 +88,11 @@ jobs:
         with:
           node-version: ${{ matrix.node-version }}
           cache: 'npm'
-          cache-dependency-path: ${{ env.PACKAGE_PATH }}/package-lock.json
+          cache-dependency-path: package-lock.json
 
       - name: Install dependencies
         working-directory: ${{ env.PACKAGE_PATH }}
-        run: npm ci
+        run: npm install
 
       - name: Build package (ESM + CJS)
         working-directory: ${{ env.PACKAGE_PATH }}
@@ -154,11 +154,11 @@ jobs:
         with:
           node-version: ${{ env.NODE_VERSION }}
           cache: 'npm'
-          cache-dependency-path: ${{ env.PACKAGE_PATH }}/package-lock.json
+          cache-dependency-path: package-lock.json
 
       - name: Install dependencies
         working-directory: ${{ env.PACKAGE_PATH }}
-        run: npm ci
+        run: npm install
 
       - name: Run tests with coverage
         working-directory: ${{ env.PACKAGE_PATH }}
@@ -198,11 +198,11 @@ jobs:
         with:
           node-version: ${{ env.NODE_VERSION }}
           cache: 'npm'
-          cache-dependency-path: ${{ env.PACKAGE_PATH }}/package-lock.json
+          cache-dependency-path: package-lock.json
 
       - name: Install dependencies
         working-directory: ${{ env.PACKAGE_PATH }}
-        run: npm ci
+        run: npm install
 
       - name: Build package
         working-directory: ${{ env.PACKAGE_PATH }}
@@ -259,11 +259,11 @@ jobs:
         with:
           node-version: ${{ env.NODE_VERSION }}
           cache: 'npm'
-          cache-dependency-path: ${{ env.PACKAGE_PATH }}/package-lock.json
+          cache-dependency-path: package-lock.json
 
       - name: Install dependencies
         working-directory: ${{ env.PACKAGE_PATH }}
-        run: npm ci
+        run: npm install
 
       - name: Build package
         working-directory: ${{ env.PACKAGE_PATH }}

.gitignore

@@ -24,7 +24,6 @@ target
 node_modules/
 package-lock.json
 !npm/package-lock.json
-!packages/agentic-synth/package-lock.json
 
 # napi-rs build artifacts
 *.node