fix(slimctl): improve startup error reporting (#1248)

## Summary
- improve slimctl startup error reporting and formatting
- add coverage for formatted start errors
- adjust bindings config used by slimctl

## Testing
- task -d control-plane control-plane:test

---------

Signed-off-by: Luca Muscariello <muscariello@ieee.org>

Author: muscariello

.github/workflows/control-plane.yaml

@@ -26,6 +26,8 @@ jobs:
     with:
       go-version: 1.25.5
       working-directory: ./control-plane
+      use-local-bindings: true
+      cgo-enabled: '1'
 
   control-plane-docker-build:
     name: Build control plane docker image

.github/workflows/coverage.yaml

@@ -37,6 +37,14 @@ jobs:
       - name: Generate data plane coverage report (Rust + Python)
         run: task data-plane:coverage-full
 
+      - name: Setup SLIM Go bindings
+        working-directory: ${{ github.workspace }}
+        run: |
+          CGO_ENABLED=1 task -d control-plane control-plane:go-bindings:setup \
+            TARGETOS=$(go env GOOS) \
+            TARGETARCH=$(go env GOARCH) \
+            USE_LOCAL_BINDINGS=true
+
       - name: Generate control-plane coverage reports
         run: task control-plane:coverage
         working-directory: control-plane

.github/workflows/integration-tests.yaml

@@ -42,6 +42,29 @@ jobs:
         with:
           workspace: ./data-plane
 
+      - name: Setup SLIM Go bindings
+        run: |
+          task -d ./control-plane control-plane:go-bindings:setup \
+            TARGETOS=$(go env GOOS) \
+            TARGETARCH=$(go env GOARCH) \
+            USE_LOCAL_BINDINGS=true
+
+      - name: Mirror bindings cache for CGO
+        run: |
+          CACHE_DIR="$(go env GOPATH)/.cgo-cache"
+          REPO_ROOT="$(git rev-parse --show-toplevel)"
+          REPO_CACHE="$REPO_ROOT/.cgo-cache"
+          if [ -d "$CACHE_DIR/slim-bindings" ]; then
+            mkdir -p "$REPO_CACHE"
+            cp -a "$CACHE_DIR/slim-bindings" "$REPO_CACHE/"
+          fi
+
+      - name: Generate Go bindings from cache
+        run: |
+          task -d ./data-plane/bindings/go generate-from-cache \
+            TARGETOS=$(go env GOOS) \
+            TARGETARCH=$(go env GOARCH)
+
       - name: Run integration test suite
         working-directory: ./tests
         run: task tests:integration