Consolidate CI workflows into a single entry point (#836)

* refactor: consolidate CI workflows with ci-all.yml orchestrator

- Add ci-all.yml to orchestrate all CI workflows on push to main
- Update individual workflows to use workflow_call for reusability
- Remove redundant push triggers from individual test workflows
- Update release.yml to trigger on CI All workflow completion
- Auto-release on version bump commits after CI passes

Co-Authored-By: Claude <noreply@anthropic.com>
Claude-Generated-By: Claude Code (cli/claude-opus-4-5=100%)
Claude-Steers: 8
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* address security review comments

---------

Co-authored-by: Claude <noreply@anthropic.com>

.github/workflows/ci-all.yml

@@ -0,0 +1,37 @@
+# Orchestrates all CI workflows - runs on PRs, pushes to main, and manual dispatch
+# Individual test workflows are called as reusable workflows
+name: CI All
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  ci:
+    uses: ./.github/workflows/ci.yml
+
+  test-base-action:
+    uses: ./.github/workflows/test-base-action.yml
+    secrets: inherit # Required for ANTHROPIC_API_KEY
+
+  test-custom-executables:
+    uses: ./.github/workflows/test-custom-executables.yml
+    secrets: inherit
+
+  test-mcp-servers:
+    uses: ./.github/workflows/test-mcp-servers.yml
+    secrets: inherit
+
+  test-settings:
+    uses: ./.github/workflows/test-settings.yml
+    secrets: inherit
+
+  test-structured-output:
+    uses: ./.github/workflows/test-structured-output.yml
+    secrets: inherit