OMP title-slot metadata prevents session discovery

[jbspeakr]

CodeBurn’s (v0.9.19) shared Pi/OMP JSONL discovery gate requires the first physical line of a transcript to be a {"type":"session"} record.

Oh My Pi can write a fixed-width title metadata slot before that header:

  {"type":"title","v":1,"title":"…","updatedAt":"…","pad":"…"}
  {"type":"session","version":3,"id":"…","cwd":"…"}

As a result, valid OMP transcripts were rejected during discovery and omitted from:

  codeburn sessions --provider omp

Upstream context

The earliest public upstream source found for this physical title-slot format is seemingly can1357/oh-my-pi@0ce330a

• Authored: 2026-06-27 13:13 UTC
• Committed: 2026-06-28 05:27 UTC
• Introduced SESSION_TITLE_SLOT_ENTRY_TYPE = "title" and fixed-width first-line title metadata.

Expected behaviour

Discovery skips blank lines, malformed records, and non-session metadata, then accepts the transcript when it finds a type: "session" record.

Acceptance criteria

• OMP title-first JSONL transcripts are discovered.
• Blank lines before the session record do not prevent discovery.
• Message-only files with no session record remain excluded.
• Pi and OMP retain identical shared discovery behaviour.