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>

homeai-agent/setup.sh

@@ -0,0 +1,65 @@
+#!/usr/bin/env bash
+# homeai-agent/setup.sh — P4: OpenClaw agent + skills + mem0
+#
+# Components:
+#   - OpenClaw          — AI agent runtime (port 8080)
+#   - skills/           — home_assistant, memory, weather, timer, music stubs
+#   - mem0              — long-term memory (Chroma backend)
+#   - n8n workflows     — morning briefing, notification router, memory backup
+#
+# Prerequisites:
+#   - P1 (homeai-infra) — Home Assistant running, HA_TOKEN set
+#   - P2 (homeai-llm)   — Ollama running with llama3.3:70b + nomic-embed-text
+#   - P3 (homeai-voice) — Wyoming TTS running (for voice output)
+#   - P5 (homeai-character) — aria.json character config exists
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_DIR="$(cd "${SCRIPT_DIR}/.." && pwd)"
+source "${REPO_DIR}/scripts/common.sh"
+
+log_section "P4: Agent (OpenClaw + skills + mem0)"
+detect_platform
+
+# ─── Prerequisite check ────────────────────────────────────────────────────────
+log_info "Checking prerequisites..."
+
+for service in "http://localhost:11434:Ollama(P2)" "http://localhost:8123:HomeAssistant(P1)"; do
+  url="${service%%:*}"; name="${service##*:}"
+  if ! curl -sf "$url" -o /dev/null 2>/dev/null; then
+    log_warn "$name not reachable at $url"
+  fi
+done
+
+load_env_services
+if [[ -z "${HA_TOKEN:-}" ]]; then
+  log_warn "HA_TOKEN not set in ~/.env.services — needed for home_assistant skill"
+fi
+
+# ─── TODO: Implementation ──────────────────────────────────────────────────────
+cat <<'EOF'
+
+  ┌─────────────────────────────────────────────────────────────────┐
+  │  P4: homeai-agent — NOT YET IMPLEMENTED                        │
+  │                                                                  │
+  │  OPEN QUESTION: Which OpenClaw version/fork to use?             │
+  │  Decide before implementing. See homeai-agent/PLAN.md.          │
+  │                                                                  │
+  │  Implementation steps:                                           │
+  │  1. Install OpenClaw (pip install or git clone)                 │
+  │  2. Create ~/.openclaw/config.yaml from config/config.yaml.example │
+  │  3. Create skills: home_assistant, memory, weather, timer, music│
+  │  4. Install mem0 + Chroma backend                               │
+  │  5. Create systemd/launchd service for OpenClaw (port 8080)     │
+  │  6. Import n8n workflows from workflows/                        │
+  │  7. Smoke test: POST /chat "turn on living room lights"         │
+  │                                                                  │
+  │  Interface contracts:                                            │
+  │    OPENCLAW_URL=http://localhost:8080                           │
+  └─────────────────────────────────────────────────────────────────┘
+
+EOF
+
+log_info "P4 is not yet implemented. See homeai-agent/PLAN.md for details."
+exit 0