…itecture + compiling TS app)

Re-platform groundwork for moving RedditModLog from a self-hosted PRAW daemon
to a Reddit-hosted Devvit app. Feasibility confirmed: getModerationLog,
get/updateWikiPage, Redis (replaces SQLite), scheduler cron + onModAction
trigger, and app settings cover every primitive the bot uses.

- devvit-migration/docs/: requirements + feature-parity matrix, two research
  reports (exact Devvit API shapes; Redis model + scheduler + settings + UI),
  architecture (module layout, Redis key schema, execution model, gap list),
  STATUS, and stored Reddit API reference
- devvit/: TypeScript app scaffold (storage, modlog, render, wiki, settings,
  menu, main + types) — type-checks clean (tsc --noEmit, 0 errors)
- README: migration callout; anonymize-moderators invariant + 512KB cap +
  no-user-profile-links preserved by design

Produced by a multi-agent scrum (requirements -> research -> architecture ->
per-component implementation -> scaffold). Generated TS is a reviewed starting
point; every Devvit API call must be validated in devvit playtest before publish.

Existing Python app is untouched and remains the supported version.

A self-contained vitest harness (in-memory Redis + mock Reddit client +
fixtures) runs the real compiled pipeline offline — no Devvit auth needed —
covering ingest/filter, anonymize (INV-1), no-profile-links (INV-2), PII strip
(INV-4), retention, and hash-skip (INV-6). It surfaced two real bugs, now fixed:

- modlog.ts: ignored-moderator match was case-sensitive, so a lowercased
  ignore list (or mixed-case mod name) silently leaked ignored mods (e.g.
  AutoModerator) into the public wiki. Now case-insensitive (INV-8).
- render.ts: contentHash hashed the volatile 'Last Updated' timestamp, so the
  INV-6 skip never triggered and the wiki would be rewritten every cron run.
  Hash now excludes that line (mirrors the Python prod hotfix).