docs: apply fleet-template (16-artifact scaffold)

Adds missing standard artifacts:
- README.md (if missing)
- AGENTS.md (AI agent contract)
- PLAN.md (current sprint)
- STATUS.md (where we are)
- DEVELOPMENT.md (dev workflow)
- DEPLOYMENT.md (deploy procedure)
- TESTING.md (test strategy)
- DECISIONS.md (ADR index + templates)
- .github/CODEOWNERS
- .github/workflows/ci.yml

Preserves all existing artifacts.

Refs: RugMunchMedia/fleet-template

Makefile

@@ -0,0 +1,48 @@
+SHELL := /bin/bash
+PYTHON := python3
+
+.PHONY: help install dev lint format typecheck test security check clean commit precommit ci
+
+help:
+	@echo "Pry Makefile"
+	@echo ""
+	@echo "  install     Install dependencies"
+	@echo "  dev         Start dev server"
+	@echo "  lint        Run ruff check"
+	@echo "  format      Run ruff format"
+	@echo "  typecheck   Run mypy"
+	@echo "  test        Run pytest"
+	@echo "  security    Run bandit + safety"
+	@echo "  check       Full audit (lint + typecheck + test)"
+	@echo "  clean       Remove build artifacts"
+	@echo "  precommit   Run ruff + mypy + bandit"
+
+install:
+	pip install -e ".[dev]"
+
+dev:
+	uvicorn api:app --reload --host 0.0.0.0 --port 8005
+
+lint:
+	ruff check .
+
+format:
+	ruff format .
+
+typecheck:
+	mypy .
+
+test:
+	pytest tests/ -v --cov=. --cov-report=term-missing
+
+security:
+	bandit -r . -x tests/,.venv,__pycache__
+
+check: lint typecheck test
+
+clean:
+	rm -rf __pycache__ .ruff_cache .mypy_cache .pytest_cache *.egg-info build dist
+
+precommit: lint format typecheck security
+
+ci: precommit test