flow-next-memory-migrate

# /flow-next:memory-migrate — agent-native legacy migration Pre-fn-30 flow-next stored memory as three flat markdown files: `.flow/memory/pitfalls.md`, `conventions.md`, `decisions.md`. Each was a sequence of `---`-delimited segments with ad-hoc headings and no schema. fn-30 introduced the categorized schema (track / category / module / tags / status frontmatter, one entry per file). Existing flat files persisted but became invisible to `memory list`, `memory search`, and `flow-next-audit` because there's no frontmatter to scope or stale-flag. This skill IS the migration. The host agent (Claude Code / Codex / Droid) reads each legacy entry, applies the mechanical default `(track, category)` from the source filename, overrides only when the entry's content warrants, and writes a categorized entry via `flowctl memory add`. Optional autofix mode accepts every mechanical default and marks ambiguous entries as `needs-review` in the report. There is no Python classifier subprocess, no `codex`/`copilot` dispatch, no fast-model probability scoring. The host agent is already an LLM with full repo context and does the work directly. flowctl provides only thin parsing + persistence plumbing (`memory list-legacy --json`, existing `memory add`) — landed by Task 2 of this spec. **Read [workflow.md](workflow.md) for the full phase-by-phase execution. Read [phases.md](phases.md) for the (track, category) decision tree with mechanical baseline + override examples.** ## Preamble **CRITIC...