<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **New Features**
- Users are now prevented from deleting their account if they own one or more team workspaces. A clear error message instructs users to transfer ownership or delete those workspaces first.
- Disabled (banned) users are explicitly prevented from signing in or re-registering.
- Added new error messages and translations to improve clarity around account deletion restrictions.
- **Bug Fixes**
- Disabled users are now explicitly handled to prevent sign-in attempts.
- **Tests**
- Introduced comprehensive end-to-end tests covering account deletion, banning, and re-registration scenarios.
- **Chores**
- Improved event handling for user deletion and subscription cancellation.
- Updated localization resources with new error messages.
- Renamed payment event handler class for clarity.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
fix AI-4
fix AI-18
better provider/model choose to allow fallback to similar models (e.g., self-hosted) when the provider is not fully configured
split functions of different output types
close CLOUD-137
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **New Features**
- Introduced advanced workspace-scoped search and aggregation capabilities with support for complex queries, highlights, and pagination.
- Added pluggable search providers: Elasticsearch and Manticoresearch.
- New GraphQL queries, schema types, and resolver support for search and aggregation.
- Enhanced configuration options for search providers in self-hosted and cloud deployments.
- Added Docker Compose services and environment variables for Elasticsearch and Manticoresearch.
- Integrated indexer service into deployment and CI workflows.
- **Bug Fixes**
- Improved error handling with new user-friendly error messages for search provider and indexer issues.
- **Documentation**
- Updated configuration examples and environment variable references for indexer and search providers.
- **Tests**
- Added extensive end-to-end and provider-specific tests covering indexing, searching, aggregation, deletion, and error cases.
- Included snapshot tests and test fixtures for search providers.
- **Chores**
- Updated deployment scripts, Helm charts, and Kubernetes manifests to include indexer-related environment variables and secrets.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
fix AI-20
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **New Features**
- Enhanced file metadata with MIME type, blob ID, and file name across context and workspace, now visible in UI and API.
- Added workspace-level matching for files and documents with configurable thresholds and workspace scoping in search queries.
- Introduced a new error type and user-friendly messaging for global workspace context matching failures.
- **Bug Fixes**
- Improved consistent handling of file MIME types and nullable context IDs for accurate metadata.
- **Documentation**
- Updated GraphQL schema, queries, and mutations to include new metadata fields, optional parameters, and error types.
- **Style**
- Added new localization strings for global context matching error messages.
- **Tests**
- Extended test coverage with new and updated snapshot tests for metadata and matching logic.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **New Features**
- Added support for installing self-hosted team licenses via encrypted license files.
- Introduced a new "Onetime" license variant for self-hosted environments.
- Added a GraphQL mutation to upload and install license files.
- License details now display the license variant.
- **Bug Fixes**
- Improved error messages for license activation and expiration, including dynamic reasons.
- **Localization**
- Updated and improved license-related error messages for better clarity.
- **Tests**
- Added comprehensive end-to-end tests for license installation scenarios.
- **Chores**
- Enhanced environment variable handling and public key management for license verification.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
liuyi
