auto-detect plan, complexity scoring, ctx7 cache, graphify in workflows

- detect_plan() auto-detects Max/Pro/Free from ~/.claude.json
- session-start budget adapts to plan (Max=20k, Pro=11k, Free=5k)
- token counting now uses only ACTIVE plugins, not installed binaries
- statusline shows plan label + session duration instead of start time
- plugin-advisor: complexity assessment (0-100%) drives tool selection
- plugin-advisor: auto-activation with confirmation (PHASE 4)
- ruflo OFF by default, GSD v2 preferred for multi-session
- init-project: ctx7 pre-fetch + graphify scaffold + graphify full
- ship-feature: ctx7 cache check before implementation
- frontend-design disabled in installer (doublon with ui-ux-pro-max)
- python3 -c moved from deny to ask (unblocks graphify)

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

install-plugins.sh

@@ -343,7 +343,9 @@ install_plugin() {
 info "Adding Anthropic bundled plugins marketplace..."
 claude plugin marketplace add anthropics/claude-code 2>/dev/null || true
 install_plugin "security-guidance"  "claude-code-plugins"
-install_plugin "frontend-design"    "claude-code-plugins"
+# frontend-design: DISABLED — doublon with ui-ux-pro-max (2026-04-12)
+# To re-enable: uncomment line below + remove .disabled suffix from cache
+# install_plugin "frontend-design"    "claude-code-plugins"
 install_plugin "pr-review-toolkit"  "claude-code-plugins"
 install_plugin "plugin-dev"         "claude-code-plugins"