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>

Dockerfile

@@ -0,0 +1,20 @@
+FROM node:22-slim AS builder
+
+WORKDIR /app
+COPY package.json package-lock.json ./
+RUN npm ci
+COPY tsconfig.json ./
+COPY src/ src/
+RUN npm run build
+
+FROM node:22-slim
+
+WORKDIR /app
+COPY package.json package-lock.json ./
+RUN npm ci --omit=dev
+COPY --from=builder /app/dist/ dist/
+
+EXPOSE 3000
+USER node
+
+CMD ["node", "dist/index.js"]