Rip out Ollama: direct_route only, no LLM layer

Pete moves to a remote host without Ollama access. Every source must
declare a direct_route channel; the classifier, explainer, semantic
dedup, !explain summaries, feed_hint, and the recent_headlines /
classification_log tables are gone. Deterministic dedup (canonical URL,
headline_norm, per-channel cooldown) remains.

config.example.yaml

@@ -11,11 +11,6 @@ matrix:
     politics: "!politicsroomid:matrix.example.org"
     gaming: "!gamingroomid:matrix.example.org"
 
-ollama:
-  base_url: "http://localhost:11434"
-  model: "gemma4:27b"
-  timeout_seconds: 30
-
 posting:
   min_interval_seconds: 300
   burst_cap_count: 3
@@ -23,12 +18,11 @@ posting:
   daily_cap_total: 5  # hard global cap across ALL channels (rolling 24h); 0 disables
   round_robin:
     enabled: false       # when true, replaces immediate posting with paced rotation
-    interval_hours: 4    # one story per N hours, cycling through sources in config order
+    interval_hours: 4    # one story per N hours, cycling through channels in sorted order
 
 storage:
   db_path: "./data/pete.db"
   recent_window_hours: 24
-  classification_log_days: 7
 
 web:
   enabled: true
@@ -36,28 +30,20 @@ web:
   site_title: "Pete"
   base_url: "https://news.parodia.dev"
 
+# Every enabled source MUST set direct_route to a key from matrix.channels above.
+# There is no automatic classification — Pete posts each story to its configured channel.
 sources:
   - name: "The Guardian — World"
     feed_url: "https://www.theguardian.com/world/rss"
     tier: 1
     poll_interval_minutes: 20
-    feed_hint: "politics"
     direct_route: "politics"
     enabled: true
 
-  - name: "The Guardian — Technology"
-    feed_url: "https://www.theguardian.com/technology/rss"
-    tier: 1
-    poll_interval_minutes: 20
-    feed_hint: "tech"
-    direct_route: null
-    enabled: true
-
   - name: "The Guardian — Politics"
     feed_url: "https://www.theguardian.com/politics/rss"
     tier: 1
     poll_interval_minutes: 20
-    feed_hint: "politics"
     direct_route: "politics"
     enabled: true
 
@@ -65,7 +51,6 @@ sources:
     feed_url: "https://www.theguardian.com/us-news/rss"
     tier: 1
     poll_interval_minutes: 20
-    feed_hint: "politics"
     direct_route: "politics"
     enabled: true
 
@@ -73,22 +58,12 @@ sources:
     feed_url: "https://feeds.arstechnica.com/arstechnica/index"
     tier: 1
     poll_interval_minutes: 20
-    feed_hint: "tech"
-    direct_route: null
-    enabled: true
-
-  - name: "Ars Technica — Policy"
-    feed_url: "https://feeds.arstechnica.com/arstechnica/tech-policy"
-    tier: 1
-    poll_interval_minutes: 20
-    feed_hint: "tech+politics"
-    direct_route: null
+    direct_route: "tech"
     enabled: true
 
   - name: "Time Extension"
     feed_url: "https://www.timeextension.com/feeds/news"
     tier: 1
     poll_interval_minutes: 20
-    feed_hint: "gaming"
     direct_route: "gaming"
     enabled: true