[Bug]: Word Count Guardrail missing from the Add Guardrail list under the default category filter

Please select the area the issue is related to

AI Workspace

Please select the aspect the issue is related to

Aspect/API (API backends, definitions, contracts, interfaces, OpenAPI), Aspect/UI (Frontend layouts, components, styling)

Description

On an App LLM Proxy's Guardrails & Policies tab, clicking Add under Global Guardrails & Policies opens a catalog panel with a Categories filter (defaulting to AI). Under that default filter, Word Count Guardrail never appears — not by scrolling, and not by typing its name into the search box.

Root cause: the panel fetches the catalog with a hardcoded limit=40. The AI category currently has 43 policies, returned alphabetically, so the last 3 — Token Based Ratelimit, URL Guardrail, Word Count Guardrail — fall past the cutoff and are silently dropped. The search box only filters the already-fetched 40 items client-side, so it can never surface one that didn't make the batch, no matter what's typed.

Suggested fix:

• Wire the search box to the catalog API's own search param (server-side), instead of filtering the already-fetched page client-side.
• Add pagination: load the next page via the API's existing offset support as the user scrolls to the bottom of the list (infinite scroll), instead of a one-shot capped fetch — so no category is silently truncated regardless of how large it grows.

Steps to Reproduce

1. On any App LLM Proxy, go to Guardrails & Policies → Add (under Global Guardrails & Policies).
2. Leave Categories on the default AI filter.
3. Search Word Count, or scroll the full list — no result; the list ends at "Time-Based Model Routing".
4. Switch Categories to Guardrails instead — Word Count Guardrail now appears.

Severity Level of the Issue

Severity/Critical (Core functionality is broken but there is a workaround. Need urgent attention)

Environment Details (with versions)

• AI Workspace console at ai-workspace.bijira.dev
• Observed 2026-09-09

Reproduce the missing Word Count Guardrail from the Guardrails & Policies tab with the default AI category, then trace the catalog API request used by the Add panel. Inspect how the search parameter and offset are handled, and verify that server-side search plus scrolling through additional pages makes all AI policies discoverable, including Word Count Guardrail.