## Context
As per PR title - disables creation of read replicas for HA projects.
This involves:
- Hiding new replica CTA in `DatabaseSelector`
- Used in pages like reports
- Hiding new replica CTA in `DatabaseParametersSubMenu`
- Used in SQL Editor + Explorer
- Disabling new replica CTA in settings/infrastructure under Read
Replicas
<img width="1065" height="401" alt="image"
src="https://github.com/user-attachments/assets/18c59cee-2f47-4874-9861-8211684282ab"
/>
<img width="418" height="366" alt="image"
src="https://github.com/user-attachments/assets/553cf75b-ff95-41c0-beca-357430a7e888"
/>
<!-- This is an auto-generated comment: release notes by coderabbit.ai
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## Summary by CodeRabbit
## Bug Fixes
- Updated read replica controls to accurately reflect project
availability.
- Hid read replica creation options for high-availability projects.
- Prevented read replica deployment for high-availability projects.
- Added an explanatory notice and guidance when read replicas are
unavailable due to high-availability settings.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
## Summary
- define application-owned database and logs source contracts, defaults,
validation, labels, and execution endpoints
- extract controlled database and logs parameter controls for reuse
outside SQL snippets
- adapt the SQL editor to the shared source model without changing
snippet behavior
- standardize source icons at 16px with a 2px stroke
- keep relative logs ranges aligned with the existing date picker units
## To test
1. Open an existing query in the SQL Editor and run it against the
database.
2. Switch the query source to Logs, change the time range, and confirm
the query still runs as expected.
## Why
Explorer queries and notebook query cells need to select an execution
source without coupling that source to SQL snippets. This provides the
shared registry and controlled UI foundation for those consumers.
## Impact
Existing SQL snippets retain their current database/logs routing and
session behavior. The registry documents the SQL editor legacy
database-selector adapter while new consumers own their identifier
inline. The shared Logs date picker remains unchanged; query ranges
support its existing minute, hour, and day units. This PR does not add
the Explorer query tab itself.
## Validation
- pnpm --filter studio typecheck
- focused Vitest coverage for the registry, canonical log-range
utilities, SQL execution adapters, source filtering, retention locking,
custom ranges, and preset selection
- pnpm --filter studio run lint:ratchet
Component and state tests cover this change per the Studio testing
guidance; no E2E test is added.
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
* **New Features**
* Added a unified query-source menu for database queries and logs.
* Added custom log time-range selection with calendar support and
retention-aware upgrade prompts.
* Added consistent source icons and improved database selection
handling.
* Added support for relative and absolute log time ranges.
* **Bug Fixes**
* Improved log-range validation, defaults, and current-time handling.
* Updated query execution to use the correct source-specific endpoints.
* **Tests**
* Expanded coverage for query sources, log ranges, menus, and retention
behavior.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
