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-llm/scripts/pull-models.sh

@@ -0,0 +1,86 @@
+#!/usr/bin/env bash
+# scripts/pull-models.sh — Pull all Ollama models from the manifest
+#
+# Usage:
+#   bash scripts/pull-models.sh                  # pull all models
+#   bash scripts/pull-models.sh nomic-embed-text # pull specific model
+
+set -euo pipefail
+
+SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+REPO_DIR="$(cd "${SCRIPT_DIR}/../.." && pwd)"
+source "${REPO_DIR}/scripts/common.sh"
+
+MANIFEST="${SCRIPT_DIR}/../ollama-models.txt"
+
+if ! command_exists ollama; then
+  die "Ollama not found. Run: bash homeai-llm/setup.sh first."
+fi
+
+if ! curl -sf http://localhost:11434 -o /dev/null; then
+  die "Ollama is not running. Start it first."
+fi
+
+# If a specific model is given as arg, just pull that
+if [[ $# -gt 0 ]]; then
+  for model in "$@"; do
+    log_info "Pulling $model..."
+    ollama pull "$model"
+    log_success "Pulled $model"
+  done
+  exit 0
+fi
+
+# Pull all models from manifest
+log_section "Pulling Ollama models"
+
+total=0; pulled=0; skipped=0; failed=0
+
+while IFS= read -r line || [[ -n "$line" ]]; do
+  # Skip comments and blank lines
+  [[ "$line" =~ ^[[:space:]]*# ]] && continue
+  [[ -z "${line// }" ]] && continue
+
+  model="${line%% *}"   # strip any trailing comment
+  total=$((total + 1))
+
+  # Check if model is already present
+  if ollama list 2>/dev/null | grep -q "^${model%%:*}"; then
+    tag="${model##*:}"
+    model_name="${model%%:*}"
+    if [[ "$tag" != "$model_name" ]]; then
+      # Has explicit tag — check exact match
+      if ollama list 2>/dev/null | grep -q "^${model_name}.*${tag}"; then
+        log_info "Already present: $model — skipping"
+        skipped=$((skipped + 1))
+        continue
+      fi
+    else
+      log_info "Already present: $model — skipping"
+      skipped=$((skipped + 1))
+      continue
+    fi
+  fi
+
+  log_step "Pulling $model..."
+  if ollama pull "$model"; then
+    log_success "Pulled $model"
+    pulled=$((pulled + 1))
+  else
+    log_error "Failed to pull $model"
+    failed=$((failed + 1))
+  fi
+
+done < "$MANIFEST"
+
+echo ""
+log_info "Pull complete: ${pulled} pulled, ${skipped} already present, ${failed} failed (of ${total} total)"
+
+if [[ $failed -gt 0 ]]; then
+  log_warn "Some models failed to pull. Check your internet connection and retry."
+  exit 1
+fi
+
+echo ""
+log_info "Installed models:"
+ollama list