SIENTIAPDE-1645: Overhaul deployment, add Claude AI guidance, and enhance CI/CD.

Migrated to a shared sientia-module image and umbrella Helm chart, removing the standalone Dockerfile, .dockerignore, and values.yaml. Introduced CLAUDE.md for AI-assisted development. Updated quality-gate.yml with push triggers, concurrency, and refined permissions. Bumped project version to 2.0.0 to reflect these architectural changes.

.github/workflows/quality-gate.yml

@@ -1,6 +1,11 @@
 name: Quality gate
 
 on:
+  push:
+    branches:
+      - main
+      - 'release/**'
+      - 'feature/**'
   pull_request:
     branches:
       - main
@@ -8,10 +13,17 @@ on:
       - 'feature/**'
     types: [ opened, synchronize, reopened ]
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
 jobs:
   quality-gate:
     uses: Aignosi/github_workflow_templates/.github/workflows/python-quality-gate.yml@main
-    permissions: write-all
+    permissions:
+      contents: read
+      pull-requests: write
+      issues: write
     with:
       project_name: 'model_manager'
       repositories: 'sientia-dataops-library,sientia-model-library'