Issue #3586305: Fix context prefix default alignment and stale getManageUrl docs.

Pravesh Pooniarequested to merge
issue/ai_context-3586305:fix/documentation-api-consistency-3586305 into 1.0.x

Fixed 6.1 and 6.2

6.1 — Context prefix alignment

The fallback string in AiContextSystemPromptSubscriber didn't match the value in config/install/ai_context.settings.yml. Aligned the PHP fallback to the canonical config default.

6.2 — Stale getManageUrl() docs

scope_api.md and custom_scopes.md were still referencing getManageUrl(): ?string which no longer exists. Updated both files to document the actual getManageRoute(): ?array method with the correct return structure.

Merge request reports