feat: expand agents (10), skills (20), and hooks (11) with profile system

Agents:
- Add YAML frontmatter (model, tools) to all 7 existing agents
- New agents: planner (opus), build-error-resolver (sonnet), loop-operator (sonnet)

Skills:
- search-first: research before building (Adopt/Extend/Compose/Build)
- verification-loop: full quality gate pipeline (Build→TypeCheck→Lint→Test→Security→Diff)
- strategic-compact: when and how to run /compact effectively
- autonomous-loops: 6 patterns for autonomous agent workflows
- continuous-learning: extract session learnings into instincts

Hooks:
- Profile system (minimal/standard/strict) via run-with-profile.sh
- config-protection: block linter/formatter config edits (standard)
- suggest-compact: remind about /compact every ~50 tool calls (standard)
- auto-tmux-dev: suggest tmux for dev servers (standard)
- session-save/session-load: persist and restore session context (Stop/SessionStart)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.claude/hooks/run-with-profile.sh

@@ -0,0 +1,46 @@
+#!/bin/bash
+# Hook profile gate — wraps hooks to enable/disable by profile
+# Profiles: minimal (safety only), standard (safety + quality), strict (everything)
+#
+# Usage in settings.json:
+#   "command": "$CLAUDE_PROJECT_DIR/.claude/hooks/run-with-profile.sh standard $CLAUDE_PROJECT_DIR/.claude/hooks/some-hook.sh"
+#
+# Environment variables:
+#   CLAUDE_HOOK_PROFILE  — Override profile (minimal|standard|strict). Default: standard
+#   CLAUDE_DISABLED_HOOKS — Comma-separated list of hook filenames to skip. E.g.: "suggest-compact.sh,auto-tmux-dev.sh"
+
+REQUIRED_PROFILE="${1:?Usage: run-with-profile.sh <profile> <hook-script>}"
+HOOK_SCRIPT="${2:?Usage: run-with-profile.sh <profile> <hook-script>}"
+shift 2
+
+# Current profile (default: standard)
+CURRENT_PROFILE="${CLAUDE_HOOK_PROFILE:-standard}"
+
+# Profile hierarchy: minimal < standard < strict
+profile_level() {
+  case "$1" in
+    minimal) echo 1 ;;
+    standard) echo 2 ;;
+    strict) echo 3 ;;
+    *) echo 2 ;;  # default to standard
+  esac
+}
+
+CURRENT_LEVEL=$(profile_level "$CURRENT_PROFILE")
+REQUIRED_LEVEL=$(profile_level "$REQUIRED_PROFILE")
+
+# Skip if current profile is lower than required
+if [ "$CURRENT_LEVEL" -lt "$REQUIRED_LEVEL" ]; then
+  exit 0
+fi
+
+# Check if hook is explicitly disabled
+HOOK_NAME=$(basename "$HOOK_SCRIPT")
+if [ -n "$CLAUDE_DISABLED_HOOKS" ]; then
+  if echo ",$CLAUDE_DISABLED_HOOKS," | grep -q ",$HOOK_NAME,"; then
+    exit 0
+  fi
+fi
+
+# Execute the hook, passing stdin through
+exec "$HOOK_SCRIPT" "$@"