pubsub: Enable implicit GetQueueUrl on initialization

[roseyang62]

Summary

This PR changes the AWS PubSub client to only accept queue names.
If a queue name is provided, we call GetQueueUrl during initialization and store the resolved full URL internally.

Some conventions to follow

1. add the module name as a prefix
   • for example: add a prefix: docstore: for document store module, blobstore for Blob Store module
2. for a test only PR, add test:
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4. for a refactoring only PR, add "refactor:"

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 83.61%. Comparing base (6c8b9dc) to head (7698a91).
⚠️ Report is 5 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff              @@
##               main     #183      +/-   ##
============================================
+ Coverage     83.59%   83.61%   +0.02%     
  Complexity       90       90              
============================================
  Files           150      150              
  Lines          8038     8051      +13     
  Branches        941      940       -1     
============================================
+ Hits           6719     6732      +13     
  Misses          875      875              
  Partials        444      444              

Flag	Coverage Δ
unittests	83.61% <100.00%> (+0.02%)	⬆️

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[sandeepvinayak]

this seems a random check, why would we check for https prefix?

[roseyang62]

The current logic only accepts queue names, so I'm using https:// to distinguish between URLs and names.

Or we could support both input formats:

• If the consumer passes a queue name, we call GetQueueUrl implicitly.
• If the consumer passes a full queue URL, it's a bit redundant for us to still call GetQueueUrl during client initialization.

[sandeepvinayak]

I mean why do we check only for https://, there are can n number of bad inputs, such as clients can just pass the url without https:// prefix. We can just rely on getting the exception from the AWS that the resource doesn't exist in case of bad input or maybe a regex for a valid queue name if we really need pre-validation.

[roseyang62]

thanks I understand, I removed the prefix check and let AWS handle invalid cases

[sandeepvinayak]

let's call it topicUrl now, we shouldn't replace the existing topicName

[roseyang62]

agreed, we shouldn't overwrite the original topicName. I have renamed it to topicUrl to keep both values clear

[roseyang62]

I added this method because in integration tests, both topic and subscription may share the same queue. If each build() call triggers GetQueueUrl, WireMock records multiple mappings, which can cause replay mismatches.

By calling GetQueueUrl once and passing the cached URL via withSubscriptionUrl, we can avoid redundant API calls and ensure only one mapping is generated per queue.