[Feature] Support for prefix matching and index persistence

[tew-axiom]

What would you like to be added:

Support for prefix matching and index persistence in dubbo-admin's indexing system. Specifically:

1. Prefix Matching Support:

   • Extend index query logical operators beyond simple equality matches to support prefix-based searches
   • For memory storage: Implement Trie data structure to enable efficient prefix matching
   • For database storage: Design and implement database queries that support prefix matching along with other composite conditions

2. Index Persistence for Database Storage:

   • Create a new database table to persist indexes when using DB-backed storage
   • Ensure index consistency across multiple replicas in Master-Slave deployment architecture
   • Enable all replicas to access persisted indexes for frontend query operations

3. Indexer Refactoring:

   • Expand logical operators in the Indexer definition beyond the current "Equals" operator
   • Refactor the Indexer interface to support extended query capabilities
   • Update dependent components including Manager and Console to work with the new indexing system

Why is this needed:

Related to #1381 proposal.

Currently, dubbo-admin's indexing system has the following limitations:

• Only supports simple equality matching, lacking prefix-based search capabilities
• In multi-replica deployments with database storage, indexes are only maintained in memory on the leader replica, causing query inconsistencies
• The current index structure (map[idx_value][resource_key]) is too simple to support advanced query requirements

This enhancement will:

• Enable more flexible and powerful search capabilities for users querying resources
• Ensure data consistency and availability in distributed deployments
• Improve the overall scalability and reliability of dubbo-admin in production environments

[tew-axiom]

Plz assign to me, and I will advance this feature.