fix: Code Quality improvements to response record endpoint and added unit tests (#22264)

* chore: remove unnecessary logs and fix documentation

* refactor: extract GetSlotsInputWithRouting type and eliminate code duplication

- Move GetSlotsInputWithRouting_2024_09_04 type to platform-types package for reuse
- Refactor slots service to eliminate duplicate error handling logic
- Fix TypeScript errors in slots service tests by adding missing type property
- Update test expectations to match new implementation

🤖 Generated with [Claude Code](https://claude.ai/code)

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

* refactor: improve type safety in slots service

- Export explicit types from slots-input.service for transformed queries
- Replace 'any' type with proper TransformedSlotsQuery union type
- Re-implement fetchAndFormatSlots abstraction to eliminate code duplication
- Revert unrelated console.log in router.controller.ts

🤖 Generated with [Claude Code](https://claude.ai/code)

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

* refactor: simplify slots service implementation

- Remove intermediate variable assignment in getAvailableSlotsWithRouting
- Update test to match simplified routing parameters structure

* test: add comprehensive error handling and edge case tests for slots service

- Add error scenario tests for NotFoundException, invalid time range, and generic errors
- Add edge case tests for null/undefined parameters and empty arrays
- Improve test coverage for getAvailableSlotsWithRouting method
- Mock SlotsInputService properly to enable isolated unit testing

* 📝 CodeRabbit Chat: Rename TransformedGetSlotsQuery types to InternalGetSlotsQuery in slot services

* fix: correct import path for AvailableSlotsService in slots service test

- Fix import path from '@/lib/services/AvailableSlots' to '@/lib/services/available-slots.service'
- Resolves unit test failure due to case sensitivity/naming mismatch
- All API v2 tests now pass (9 test suites, 142 tests)

Co-Authored-By: hariom@cal.com <hariombalhara@gmail.com>

---------

Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>
Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

docs/api-reference/v2/openapi.json

@@ -25010,7 +25010,7 @@
             "example": 123
           },
           "routing": {
-            "description": "The routing information.",
+            "description": "The routing information that could be passed as is to the booking API.",
             "example": {
               "eventTypeId": 123,
               "routing": {