feat: configure automatic DTS/Azure Storage switching and fix task hu…

[dbarkol]

…b naming

• Add app settings override for automatic environment switching

  • Local: uses azureStorage with AzureWebJobsStorage (via host.json)
  • Azure: uses azureManaged with DTS_CONNECTION_STRING (via app settings)
  • No manual host.json changes required between environments

• Fix task hub naming convention

  • Remove hyphen from taskhub abbreviation (taskhub- → taskhub)
  • Task hub names must be alphanumeric only per Azure DTS requirements
  • Prevents 'Invalid table name' errors in production

• Clean up environment variables

  • Remove DURABLE_TASK_STORAGE_TYPE from local.settings files
  • Remove DURABLE_TASK_CONNECTION_STRING_NAME from local.settings files
  • Update generate-settings scripts to exclude removed variables

• Infrastructure improvements

  • Quote app settings keys with double underscores in bicep
  • Maintain Always Ready configuration for DTS with Flex Consumption
  • Configuration: AzureFunctionsJobHost__extensions__durableTask__storageProvider__*

This implementation follows the Azure Functions app settings override pattern documented at: https://learn.microsoft.com/azure/azure-functions/functions-host-json\#override-hostjson-values

Purpose

• ...

Does this introduce a breaking change?

[ ] Yes
[ ] No

Pull Request Type

What kind of change does this Pull Request introduce?

[ ] Bugfix
[ ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Documentation content changes
[ ] Other... Please describe:

How to Test

• Get the code

git clone [repo-address]
cd [repo-name]
git checkout [branch-name]
npm install

• Test the code

What to Check

Verify that the following are valid

• ...

Other Information