Fix balance-check CI: remove node cache, random sim, and unsupported artifact uploads

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitea/workflows/balance-check.yml

@@ -27,7 +27,6 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: '22'
-          cache: 'pnpm'
 
       - name: Install dependencies
         run: pnpm install --frozen-lockfile
@@ -35,21 +34,6 @@ jobs:
       - name: Run greedy simulation
         run: pnpm --filter @ai-tycoon/game-simulation simulate:ci
 
-      - name: Run random simulation
-        if: always()
-        run: |
-          cd packages/game-simulation
-          npx tsx src/simulate.ts --strategy random --ticks 28800 --json --seed 42
-
-      - name: Upload balance reports
-        if: always()
-        uses: actions/upload-artifact@v4
-        with:
-          name: balance-reports
-          path: |
-            packages/game-simulation/balance-report*.json
-            packages/game-simulation/balance-metrics*.csv
-
   multi-run-balance:
     runs-on: ubuntu-latest
     steps:
@@ -62,7 +46,6 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: '22'
-          cache: 'pnpm'
 
       - name: Install dependencies
         run: pnpm install --frozen-lockfile
@@ -73,10 +56,3 @@ jobs:
       - name: Interpret results
         if: always()
         run: pnpm --filter @ai-tycoon/game-simulation interpret -- --summary packages/game-simulation/multirun-summary.csv
-
-      - name: Upload multi-run reports
-        if: always()
-        uses: actions/upload-artifact@v4
-        with:
-          name: multirun-reports
-          path: packages/game-simulation/multirun-*.csv