[Framework] Stray leftover session transcript file at repo root

[striderZA]

Problem

An untracked leftover file sits at the repo root: omp-session-2026-07-26T18-06-56-642Z_019f9f9b-d082-7000-a020-891b59c57124.html (467KB) — a coding-agent session transcript, not part of the framework.

Fix

• Delete the file.
• Add a .gitignore pattern for omp-session-*.html (or wherever these transcripts get dropped) to prevent recurrence.

Acceptance criteria

• File removed from repo root
• .gitignore updated to prevent future stray transcript files from being tracked/left behind

[striderZA]

Fixed in commit edaac99 (local, not yet pushed). Verified via node tests/agents/validate.mjs (206/206 PASS) and npm test (158/158 PASS).