CI/CD Pipeline Templates for GitLab

Shared GitLab CI configuration files stored in the aidea-engine repo that any Jestech project can include. Provides automated build, test, and deploy pipelines integrated with jestech-deploy. **Templates:** - `base.yml` — Stage ordering (lint, test, build, deploy-staging, deploy-production) - `typescript.yml` — pnpm install, lint, typecheck, vitest, docker build - `python.yml` — ruff check, mypy, pytest, docker build - `deploy.yml` — Feature branches auto-deploy to `branch.project.jestech.org`, main branch gets manual production deploy button **Key integration:** GitLab Runner (Docker executor) on home server calls jestech-deploy for deployments. Each project includes templates via `include: project: jestech/aidea-engine`. **Why:** Without CI/CD, every deploy requires manual jestech-deploy invocation. This makes the pipeline truly automated — push code, it deploys itself. Feature branch deploys enable rapid iteration on prototypes. **Prerequisites:** GitLab Runner registered on home server, jestech-deploy accessible from runner.