[feature]: loopflow logs — browse run history #10

What problem would this solve?

Memory files already persist a record per run (memory.ts formatRecord, timestamp, outcome, iterations, cost), but there's no command to browse run history. Users have to open the raw Markdown.

Proposed solution

Add loopflow logs [name] that reads .loopflow/memory/*.md and prints a table of recent runs (timestamp, outcome, iterations, cost). Optionally consider writing a small structured log alongside the Markdown so parsing is robust. This is a roadmap item.

Alternatives considered

No response

Scope

• I've checked this isn't already on the roadmap in the README.
• This can't reasonably be expressed as a loop instead of engine code.