Initial commit: SDLC Orchestrator replacing n8n

Lightweight Hono webhook router that receives Gitea events and creates
Coder workspaces for each SDLC stage (analyse, architect, develop,
review, test, rework, release, maintenance). Includes k8s manifests
for deployment and the Coder workspace template moved from babble.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

k8s/secret.yaml.example

@@ -0,0 +1,22 @@
+# Copy to secret.yaml and fill in real values, then:
+#   kubectl apply -f k8s/secret.yaml
+#
+# NEVER commit the real secret.yaml to git.
+apiVersion: v1
+kind: Secret
+metadata:
+  name: orchestrator-secrets
+  namespace: sdlc-orchestrator
+type: Opaque
+stringData:
+  CODER_URL: "https://coder.samson.media"
+  CODER_TOKEN: "<coder-session-token>"
+  CODER_TEMPLATE_ID: "<coder-template-id>"
+  GITEA_DEV_TOKEN: "<gitea-claude-dev-token>"
+  GITEA_REVIEW_TOKEN: "<gitea-claude-review-token>"
+  ANTHROPIC_API_KEY: "<anthropic-api-key>"
+  GITEA_URL: "https://gitea.samson.media"
+  BOT_DEV_USERNAME: "claude-dev"
+  BOT_REVIEW_USERNAME: "claude-review"
+  # Comma-separated: org/repo=clone_url
+  MAINTENANCE_REPOS: "claude/babble=https://gitea.samson.media/claude/babble.git"