feat: implement comprehensive CI/CD pipeline with Bazel-native testing

- Convert shell-based integration tests to proper Go-based Bazel tests
- Add comprehensive GitHub Actions workflows:
  * Main CI/CD pipeline with multi-platform builds
  * OCI registry publishing for WebAssembly components
  * Security scanning and dependency management
  * Performance monitoring and regression detection
- Set up proper Bazel test organization with individual and suite targets
- Add Dependabot configuration for automated dependency updates
- Implement proper test environment variable handling and data dependencies

Author: avrabe

.github/dependabot.yml

@@ -0,0 +1,77 @@
+version: 2
+updates:
+  # Go module dependencies
+  - package-ecosystem: "gomod"
+    directory: "/tinygo"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+      time: "06:00"
+    open-pull-requests-limit: 10
+    reviewers:
+      - "pulseengine/maintainers"
+    assignees:
+      - "pulseengine/maintainers"
+    commit-message:
+      prefix: "go"
+      include: "scope"
+    labels:
+      - "dependencies"
+      - "go"
+      - "automated"
+
+  # Rust dependencies (if Rust implementation exists)
+  - package-ecosystem: "cargo"
+    directory: "/rust"
+    schedule:
+      interval: "weekly"
+      day: "monday"
+      time: "06:00"
+    open-pull-requests-limit: 10
+    reviewers:
+      - "pulseengine/maintainers"
+    assignees:
+      - "pulseengine/maintainers"
+    commit-message:
+      prefix: "rust"
+      include: "scope"
+    labels:
+      - "dependencies"
+      - "rust"
+      - "automated"
+
+  # NPM dependencies for documentation site
+  - package-ecosystem: "npm"
+    directory: "/docs-site"
+    schedule:
+      interval: "weekly"
+      day: "tuesday"
+      time: "06:00"
+    open-pull-requests-limit: 5
+    reviewers:
+      - "pulseengine/maintainers"
+    commit-message:
+      prefix: "docs"
+      include: "scope"
+    labels:
+      - "dependencies"
+      - "documentation"
+      - "automated"
+
+  # GitHub Actions workflow dependencies
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      day: "wednesday"
+      time: "06:00"
+    open-pull-requests-limit: 5
+    reviewers:
+      - "pulseengine/maintainers"
+    commit-message:
+      prefix: "ci"
+      include: "scope"
+    labels:
+      - "dependencies"
+      - "ci-cd"
+      - "automated"