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… and switch to HTTP for all components

 • Eliminate TLS-related configurations from BrokerServer, PublicApiServer, and various server components across the codebase.
 • Update API tests to use HTTP instead of HTTPS for requests.
 • Remove unused filepath import from api_suite_test.go.

…ration target in Makefile for autoscaler component

… from Golang API server and replace specific TLS clients with generic clients in test helpers.

 Changed function signatures to accept URL instead of port number for API calls.
 Fixed issues with attaching and detaching policies by updating the corresponding test functions to use the new URL parameter.
 Added checks for active schedules in the scaling engine and ensured proper synchronization of schedules between the scheduler and scaling engine.

…tion to Scheduler and remove SSL settings from template

… from BrokerServer in integration tests

…es function from public_api_handler in autoscaler API

 - Introduce SecuritySource struct to handle security for scaling history endpoints
 - Replace direct usage of ScalingHistoryHandler with SecuritySource for security interfaces
 - Update scaling history client creation to use SecuritySource and internal scaling engine history client
 - Remove redundant BearerAuth and HandleBearerAuth methods from ScalingHistoryHandler
 - Implement BearerAuth and HandleBearerAuth in SecuritySource for mTLS authentication
 - Adjust V1AppsGUIDScalingHistoriesGet to use new internal client and parameters mapping

…tion tests

…er API

 • Replace direct server dependency with client in ScalingHistoryHandler.
 • Implement TransportWithBasicAuth for HTTP client basic auth handling.
 • Add SecuritySource struct in client package for basic auth credentials.
 • Remove unnecessary BasicAuth method from SecuritySource in server package.

…ration tests

 - Introduce GinkgoHelper function calls in helpers_test.go for better test output.
 - Replace httpClientForPublicApi with httpClientForScheduler for clarity in integration_golangapi_scheduler_test.go.
 - Update httpClient usage in integration_suite_test.go to use the new httpClientForScheduler for scheduler-related requests.

…and timeout settings

 - Eliminate unnecessary SSL and HTTP client configuration code from RestClientConfig
 - Clean up imports in ConcurrentRequestTest

…I and scheduler

 • Introduced httpClientForPublicApi and httpClientForScheduler to differentiate between clients in integration tests.
 • Updated detachPolicy and doAttachPolicy calls to use httpClientForPublicApi instead of the generic httpClient.

 • Rename httpClient to httpClientForScheduler for clarity in integration tests.
 • Update error handling to provide more context in checkResponseEmptyAndStatusCode function.

…ndant httpClientTmp in integration tests.

 - Replace `NewApiClient` with `NewPublicApiClient` for consistency.
 - Add `NewScalingEngineClient` for specific scaling engine tests.
 - Update HTTP client variable names to reflect their specific use cases.

- Add scaling history API and client to golangapiserver and scalingengine packages

 * Fix failing integration text
 • Update integration tests to remove unnecessary space in test description.
 • Refactor URL construction in getAppAggregatedMetrics to use RawQuery for cleaner parameter handling.

…gine in app-autoscaler.yml

 - Remove hardcoded paths and replace with dynamic URL construction using `fmt.Sprintf` and `url.Parse`
 - Consolidate constants for API paths into the tests where they are used
 - Eliminate unused variables and imports following the URL refactoring
 - Update functions to construct URLs dynamically before making HTTP requests

…rver

 • Update tests to construct serverUrl as a url.URL object instead of a string.
 • Simplify the request setup by removing redundant helper functions and using setupRequest directly.
 • Set basic auth credentials on the request using SetBasicAuth method.
 • Adjust serverUrl.Path for each test case to point to the correct endpoint.

…ith When for test descriptions