fix(developer): omit duplicate URLs and empty separators

[PhantomInTheWire]

Summary

• omit the bare URL when the result ID already contains that exact URL
• skip separators for empty or whitespace-only passage blocks
• keep server-shaped passage text uncapped

On the captured how to use io uring in rust response, the current-source formatter drops from 3,580 to 3,413 o200k_base tokens, a 4.7% reduction.

Verification

• pnpm run lint
• pnpm run test (74 passed)

---

Summary by cubic

Developer search output no longer prints a duplicate bare URL when it’s already in the result ID and no longer inserts '---' between empty passages. This trims noise and reduces token usage while keeping server-shaped passages intact.

Bug Fixes

• Skip printing the bare URL when it already appears in the result ID; keep it when different (e.g., base vs child).
• Drop empty or whitespace-only passages to avoid stray '---' separators.
• Preserve server-shaped passages in full (no client-side capping).
• On the captured "how to use io uring in rust" response, output drops from 3,580 to 3,413 o200k_base tokens (~4.7%).

^{Written for commit d3cea15. Summary will update on new commits.}

[PhantomInTheWire]

@cubic-dev-ai review

[cubic-dev-ai]

@cubic-dev-ai review

@PhantomInTheWire I have started the AI code review. It will take a few minutes to complete.

[cubic-dev-ai]

All reported issues were addressed across 2 files

<sub>Reply with feedback, questions, or to request a fix.

Fix all with cubic | Re-trigger cubic</sub>

[PhantomInTheWire]

@cubic-dev-ai review

Please re-review exact head d3cea15addff80e9fa68098d03a652e1ada5b418. The prior exact-URL finding has a fix and regression. Lint, build, and 74 tests pass.

[cubic-dev-ai]

@cubic-dev-ai review

Please re-review exact head d3cea15addff80e9fa68098d03a652e1ada5b418. The prior exact-URL finding has a fix and regression. Lint, build, and 74 tests pass.

@PhantomInTheWire I have started the AI code review. It will take a few minutes to complete.

[cubic-dev-ai]

No issues found across 2 files

<sub>Auto-approved: Focused bug fix: drops duplicate bare URLs and empty/whitespace-only passage separators in developer search output, with tests pinning the new behavior.

Re-trigger cubic</sub>