fix: butler audit critical fixes — pain detection, proposal trigger, URI + data flow

5 fixes from focused audit:
- Connect analyze_for_pain_signals() to post_conversation_hook (pain points now auto-created)
- Add "generate solution" button in InsightsSection for high-confidence pain points (>=0.7)
- Fix Memory URI mismatch: viking://agents/ → viking://agent/ (singular)
- Remove duplicate .then() chain in useButlerInsights (was destructuring undefined)
- Update stale director.rs doc comment (multi-agent now enabled by default)

crates/zclaw-kernel/src/director.rs

@@ -6,10 +6,9 @@
 //! - Supporting multiple scheduling strategies
 //! - Coordinating agent responses
 //!
-//! **Status**: This module is fully implemented but gated behind the `multi-agent` feature.
-//! The desktop build does not currently enable this feature. When multi-agent support
-//! is ready for production, add Tauri commands to create and interact with the Director,
-//! and enable the feature in `desktop/src-tauri/Cargo.toml`.
+//! **Status**: This module is enabled by default via the `multi-agent` feature in the
+//! desktop build. The Director orchestrates butler delegation, task decomposition, and
+//! expert agent assignment through `butler_delegate()`.
 
 use std::sync::Arc;
 use serde::{Deserialize, Serialize};