chore: Refactor CI workflows for pipeline consolidation and manual dispatch triggers

- Updated quality-checks.yml to support manual dispatch with frontend checks.
- Modified rate-limit-integration.yml to remove workflow_run triggers and adjust conditions for execution.
- Removed pull request triggers from repo-health.yml, retaining only scheduled and manual dispatch.
- Adjusted security-pr.yml and supply-chain-pr.yml to eliminate workflow_run dependencies and refine execution conditions.
- Cleaned up supply-chain-verify.yml by removing workflow_run triggers and ensuring proper execution conditions.
- Updated waf-integration.yml to remove workflow_run triggers, allowing manual dispatch only.
- Revised current_spec.md to reflect the consolidation of CI workflows into a single pipeline, detailing objectives, research findings, and implementation plans.

.github/workflows/waf-integration.yml

@@ -3,11 +3,6 @@ name: WAF integration
 # Phase 2-3: Build Once, Test Many - Use registry image instead of building
 # This workflow now waits for docker-build.yml to complete and pulls the built image
 on:
-  workflow_run:
-    workflows: ["Docker Build, Publish & Test"]
-    types: [completed]
-    branches: [main, development, 'feature/**', 'hotfix/**']
-  # Allow manual trigger for debugging
   workflow_dispatch:
     inputs:
       image_tag: