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/session-load.sh

@@ -0,0 +1,31 @@
+#!/bin/bash
+# Restore session context from previous session
+# Event: SessionStart
+# Reads .claude/sessions/latest.json and outputs a context summary
+
+SESSION_FILE="${CLAUDE_PROJECT_DIR:-.}/.claude/sessions/latest.json"
+
+if [ ! -f "$SESSION_FILE" ]; then
+  exit 0
+fi
+
+# Read session data
+TIMESTAMP=$(jq -r '.timestamp // "unknown"' "$SESSION_FILE" 2>/dev/null)
+BRANCH=$(jq -r '.branch // "unknown"' "$SESSION_FILE" 2>/dev/null)
+PHASE=$(jq -r '.phase // "unknown"' "$SESSION_FILE" 2>/dev/null)
+MODIFIED=$(jq -r '.modified_files // [] | length' "$SESSION_FILE" 2>/dev/null)
+STAGED=$(jq -r '.staged_files // [] | length' "$SESSION_FILE" 2>/dev/null)
+COMMITS=$(jq -r '.recent_commits // [] | join("\n  ")' "$SESSION_FILE" 2>/dev/null)
+
+echo "Previous session ($TIMESTAMP):"
+echo "  Branch: $BRANCH"
+echo "  Phase: $PHASE"
+echo "  Modified files: $MODIFIED, Staged: $STAGED"
+if [ -n "$COMMITS" ] && [ "$COMMITS" != "" ]; then
+  echo "  Recent commits:"
+  echo "  $COMMITS"
+fi
+echo ""
+echo "Reminder: check RULES.md and RECOMMENDATIONS.md for project conventions."
+
+exit 0