Add self-deploying setup scripts for all sub-projects (P1-P8)

- Root setup.sh orchestrator with per-phase dispatch (./setup.sh p1..p8 | all | status)
- Makefile convenience targets (make infra, make llm, make status, etc.)
- scripts/common.sh: shared bash library for OS detection, Docker helpers,
  service management (launchd/systemd), package install, env management
- .env.example + .gitignore: shared config template and secret exclusions

P1 (homeai-infra): full implementation
- docker-compose.yml: Uptime Kuma, code-server, n8n
- Note: Home Assistant, Portainer, Gitea are pre-existing instances
- setup.sh: Docker install, homeai network, container health checks

P2 (homeai-llm): full implementation
- Ollama native install with CUDA/ROCm/Metal auto-detection
- launchd plist (macOS) + systemd service (Linux) for auto-start
- scripts/pull-models.sh: idempotent model puller from manifest
- scripts/benchmark.sh: tokens/sec measurement per model
- Open WebUI on port 3030 (avoids Gitea :3000 conflict)

P3-P8: working stubs with prerequisite checks and TODO sections

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

Makefile

@@ -0,0 +1,86 @@
+# HomeAI Makefile — convenience wrapper around setup.sh
+# Run `make help` to see all targets.
+
+SHELL := /bin/bash
+REPO_DIR := $(shell pwd)
+
+.PHONY: help all status infra llm voice agent character esp32 visual images \
+        up down restart logs ps clean
+
+help:
+	@echo ""
+	@echo "  HomeAI — Make targets"
+	@echo ""
+	@echo "  Setup:"
+	@echo "    make all         Run full setup (all phases)"
+	@echo "    make infra       P1: Docker infra stack"
+	@echo "    make llm         P2: Ollama + Open WebUI"
+	@echo "    make voice       P3: STT / TTS / Wyoming"
+	@echo "    make agent       P4: OpenClaw + skills"
+	@echo "    make character   P5: Character Manager"
+	@echo "    make esp32       P6: ESPHome firmware"
+	@echo "    make visual      P7: VTube Studio bridge"
+	@echo "    make images      P8: ComfyUI"
+	@echo ""
+	@echo "  Operations:"
+	@echo "    make status      Show service health"
+	@echo "    make up          Start all Docker services"
+	@echo "    make down        Stop all Docker services"
+	@echo "    make restart     Restart all Docker services"
+	@echo "    make logs        Tail logs (all services)"
+	@echo "    make ps          Show running containers"
+	@echo "    make clean       Remove stopped containers"
+	@echo ""
+
+all:
+	bash setup.sh all
+
+status:
+	bash setup.sh status
+
+infra:
+	bash setup.sh p1
+
+llm:
+	bash setup.sh p2
+
+voice:
+	bash setup.sh p3
+
+agent:
+	bash setup.sh p4
+
+character:
+	bash setup.sh p5
+
+esp32:
+	bash setup.sh p6
+
+visual:
+	bash setup.sh p7
+
+images:
+	bash setup.sh p8
+
+# ─── Docker operations ─────────────────────────────────────────────────────────
+up:
+	@cd homeai-infra && docker compose -f docker/docker-compose.yml up -d
+	@cd homeai-llm   && docker compose -f docker/docker-compose.yml up -d
+
+down:
+	@cd homeai-infra && docker compose -f docker/docker-compose.yml down || true
+	@cd homeai-llm   && docker compose -f docker/docker-compose.yml down || true
+
+restart:
+	@cd homeai-infra && docker compose -f docker/docker-compose.yml restart
+	@cd homeai-llm   && docker compose -f docker/docker-compose.yml restart
+
+logs:
+	@cd homeai-infra && docker compose -f docker/docker-compose.yml logs -f --tail=50
+
+ps:
+	@docker ps --format "table {{.Names}}\t{{.Status}}\t{{.Ports}}" | grep homeai || \
+	 docker ps --format "table {{.Names}}\t{{.Status}}\t{{.Ports}}"
+
+clean:
+	@docker container prune -f