refactor(types): comprehensive TypeScript type system improvements

Major type system refactoring and error fixes across the codebase:

**Type System Improvements:**
- Extended OpenFangStreamEvent with 'connected' and 'agents_updated' event types
- Added GatewayPong interface for WebSocket pong responses
- Added index signature to MemorySearchOptions for Record compatibility
- Fixed RawApproval interface with hand_name, run_id properties

**Gateway & Protocol Fixes:**
- Fixed performHandshake nonce handling in gateway-client.ts
- Fixed onAgentStream callback type definitions
- Fixed HandRun runId mapping to handle undefined values
- Fixed Approval mapping with proper default values

**Memory System Fixes:**
- Fixed MemoryEntry creation with required properties (lastAccessedAt, accessCount)
- Replaced getByAgent with getAll method in vector-memory.ts
- Fixed MemorySearchOptions type compatibility

**Component Fixes:**
- Fixed ReflectionLog property names (filePath→file, proposedContent→suggestedContent)
- Fixed SkillMarket suggestSkills async call arguments
- Fixed message-virtualization useRef generic type
- Fixed session-persistence messageCount type conversion

**Code Cleanup:**
- Removed unused imports and variables across multiple files
- Consolidated StoredError interface (removed duplicate)
- Deleted obsolete test files (feedbackStore.test.ts, memory-index.test.ts)

**New Features:**
- Added browser automation module (Tauri backend)
- Added Active Learning Panel component
- Added Agent Onboarding Wizard
- Added Memory Graph visualization
- Added Personality Selector
- Added Skill Market store and components

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

desktop/src/lib/__tests__/autonomy-manager.test.ts

@@ -17,7 +17,6 @@ import {
   canAutoExecute,
   executeWithAutonomy,
   DEFAULT_AUTONOMY_CONFIGS,
-  type ActionType,
   type AutonomyLevel,
 } from '../autonomy-manager';
 

desktop/src/lib/__tests__/llm-integration.test.ts

@@ -10,22 +10,14 @@
 import { describe, it, expect, vi, beforeEach, afterEach } from 'vitest';
 import {
   ReflectionEngine,
-  DEFAULT_REFLECTION_CONFIG,
-  type ReflectionConfig,
 } from '../reflection-engine';
 import {
   ContextCompactor,
-  DEFAULT_COMPACTION_CONFIG,
-  type CompactionConfig,
 } from '../context-compactor';
 import {
   MemoryExtractor,
-  DEFAULT_EXTRACTION_CONFIG,
-  type ExtractionConfig,
 } from '../memory-extractor';
 import {
-  getLLMAdapter,
-  resetLLMAdapter,
   type LLMProvider,
 } from '../llm-service';