Fix WASB log source URLs to use storage account endpoint

[Bafff]

The WASB task log handler currently reports remote log source URLs as:

https://<container>.blob.core.windows.net/<blob>

That makes the container name look like the storage account. Log reads still work because they use WasbHook, but the URL shown in the UI points at the wrong host.

This PR builds the source URL from the Azure BlobServiceClient instead:

• Uses primary_endpoint when available.
• Adds the container and blob path to that endpoint.
• Removes query strings and fragments before showing the URL.
• Keeps Azurite-style account paths, while dropping SAS-like path segments.
• Falls back to account_name, then to the old container-host format.

Tests cover normal Azure endpoints, Azurite endpoints, SAS query/fragment removal, SAS-in-path removal, and fallback paths. The logging docs example now shows account/container/blob.

Tests:

• uv run --project providers/microsoft/azure ruff check providers/microsoft/azure/src/airflow/providers/microsoft/azure/log/wasb_task_handler.py providers/microsoft/azure/tests/unit/microsoft/azure/log/test_wasb_task_handler.py
• uv run --project providers/microsoft/azure pytest providers/microsoft/azure/tests/unit/microsoft/azure/log/test_wasb_task_handler.py -q
• git diff --check

---

Was generative AI tooling used to co-author this PR?

• Yes, OpenAI Codex was used to help prepare the patch and PR text. Claude Code and Gemini were used to review the diff. The code and tests were checked locally before submission.

Generated-by: OpenAI Codex following the guidelines

[boring-cyborg]

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[Bafff]

hey, any news on this?

[boring-cyborg]

Awesome work, congrats on your first merged pull request! You are invited to check our Issue Tracker for additional contributions.