README: document !post on-demand command

README.md

@@ -11,6 +11,7 @@ A Matrix news bot that ingests RSS feeds from curated sources, classifies storie
 - **Round-robin mode** — opt-in pacing: one story per N hours (default 4), cycling through sources in config order, skip-and-advance over empty sources, state persists across restarts
 - **Reaction tracking** — records emoji reactions on posts for classifier tuning
 - **`!explain` via ❓ reaction** — react with `❓` (or `❔ ⁉ 🤔 ?`) on any post; Pete fetches the article body and replies in-thread with a 3-bullet Ollama-generated TL;DR
+- **`!post` on demand** — type `!post` in any configured channel room and Pete force-publishes the next queued story for that channel, bypassing min-interval, burst cap, and daily cap (canonical-URL dedup still applies); replies in-thread if the queue is empty
 - **Paywall detection** — if an article's visible body text is below threshold, Pete swaps in a Wayback Machine snapshot URL for both the lead image and the posted link
 - **FTS5 search** — full-text search across headlines and ledes
 - **Image validation** — HEAD-based checks filter tracking pixels, uploads valid images via MXC
@@ -108,7 +109,7 @@ Posted message ← ❓ reaction → Explainer → Article Fetch → Ollama summa
 | `internal/storage` | SQLite with WAL, FTS5, all queries |
 | `internal/ingestion` | Per-source RSS polling, feed parsing, image validation |
 | `internal/classifier` | Ollama client, Tier 1/2 prompts, JSON repair, keyword gating |
-| `internal/matrix` | Password auth with device persistence, posting, threaded replies, reaction listener |
+| `internal/matrix` | Password auth with device persistence, posting, threaded replies, reaction + message listener |
 | `internal/poster` | Per-channel metered release queue, reaction tracking, callback hook |
 | `internal/explainer` | ❓-reaction → article fetch → Ollama summary → threaded reply |
 | `internal/scheduler` | Round-robin posting scheduler: paced rotation across sources when enabled |