smarter: factual-model routing (beh-10), fetch_url main-content extraction + 8k cap (url-08), get_weather via met.no (spec-016)

specs/SPEC-010-behavior.md

@@ -73,3 +73,12 @@ plain names keep matching exactly as before. DMs are never ignored.
 the ignore check sat only in `respond()`, after the classifier —
 emoji reactions leaked into ignored channels, and matching was
 exact-name only.)
+
+### BEH-10 — Factual questions may use a stronger model (coverage: test)
+
+With `factual-model` configured, a message the classifier tagged
+`factual` (BEH-05) is answered by that model instead of `model` —
+opening hours, release dates, news lookups get the stronger tier
+while small talk stays on the cheap default. Unset = no change. The
+`retry-model` override still wins on retry, and vision inputs keep
+using `model-vision`.