⚡ Bolt: Optimize Knowledgebase Fetch

[nkissick-del]

⚡ Bolt: Optimize Knowledgebase Fetch

💡 What:
Replaced the manual offset/limit loop in KnowledgebaseService.get_all_kb_by_tenant_ids with a single query execution. Also fixed a bug where order_by was ignored.

🎯 Why:
The original implementation used a while loop with offset and limit to fetch all records. This causes N/batch_size queries, and each query gets slower due to OFFSET scanning (O(N^2) total work). It also had a bug where kbs.order_by(...) was called without assignment, so the results were likely unordered.

📊 Impact:

• Reduces database queries from N/50 to 1.
• Eliminates the O(N^2) scanning overhead of deep pagination.
• Ensures results are correctly ordered by creation time.

🔬 Measurement:
Verified with a unit test (test/unit_test/services/test_kb_perf.py) which mocked the DB and asserted that offset and limit are no longer called, and that dicts() is called on the ordered query object. The test was deleted after verification.

---

PR created automatically by Jules for task 8961361476201916237 started by @nkissick-del

[google-labs-jules]

👋 Jules, reporting for duty! I'm here to lend a hand with this pull request.

When you start a review, I'll add a 👀 emoji to each comment to let you know I've read it. I'll focus on feedback directed at me and will do my best to stay out of conversations between you and other bots or reviewers to keep the noise down.

I'll push a commit with your requested changes shortly after. Please note there might be a delay between these steps, but rest assured I'm on the job!

For more direct control, you can switch me to Reactive Mode. When this mode is on, I will only act on comments where you specifically mention me with @jules. You can find this option in the Pull Request section of your global Jules UI settings. You can always switch back!

New to Jules? Learn more at jules.google/docs.

---

For security, I will only act on instructions from the user who triggered this task.