feat: implement CLI blockchain features and pool hub enhancements

CLI Blockchain Features:
- Added block operations: import, export, import-chain, blocks-range
- Added messaging system commands (deploy, state, topics, create-topic, messages, post, vote, search, reputation, moderate)
- Added network force-sync operation
- Replaced marketplace handlers with actual RPC calls
- Replaced AI handlers with actual RPC calls
- Added account operations (account get)
- Added transaction query operations
- Added mempool query operations
- Created keystore_auth.py for authentication
- Removed extended features interception
- All handlers use keystore credentials for authenticated endpoints

Pool Hub Enhancements:
- Added SLA monitoring and capacity tables
- Added billing integration service
- Added SLA collector service
- Added SLA router endpoints
- Updated pool hub models and settings
- Added integration tests for billing and SLA
- Updated documentation with SLA monitoring guide

docs/MASTER_INDEX.md

@@ -2,7 +2,7 @@
 
 **Complete documentation catalog with quick access to all content**
 
-**Project Status**: ✅ **100% COMPLETED** (v0.3.1 - April 13, 2026)
+**Project Status**: ✅ **100% COMPLETED** (v0.3.2 - April 22, 2026)
 
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@@ -360,7 +360,7 @@ This master index provides complete access to all AITBC documentation. Choose yo
 
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-*Last updated: 2026-04-02*  
-*Quality Score: 10/10*  
-*Total Topics: 25+ across 4 learning levels*  
+*Last updated: 2026-04-22*
+*Quality Score: 10/10*
+*Total Topics: 25+ across 4 learning levels*
 *External Links: 5+ centralized access points*