omp: scout on @smol, cap active subagents at 2, frank-medium remote compaction

- task.agentModelOverrides.scout: "@smol" (frank-small, xhigh thinking)
- task.maxConcurrency: 2 (semaphore on ACTIVE subagents; total
  instantiations uncapped)
- compaction.remoteEndpoint -> frank-medium /v1/chat/completions
  (192.168.0.235:7770), methodOrder remote-first; compactionModel:
  frank-medium on every model so the wire model id is always valid
- models.yml header: single source of truth (pi-era import retired)

Verified: omp config get on all keys; omp -p startup probe passed;
live POST in the remote-compaction wire format answered.

agent/config.yml

@@ -55,10 +55,15 @@ autolearn:
   enabled: true
   autoContinue: true
 compaction:
+  # Server-side compaction always runs on frank-medium: the endpoint is
+  # frank-medium's /v1/chat/completions, and every model in models.yml
+  # carries compactionModel: llamacpp (dankserver)/frank-medium so the
+  # POST body's model id stays valid from any session model.
+  remoteEndpoint: http://192.168.0.235:7770/v1/chat/completions
   methodOrder:
+    - remote
     - shake
     - soft
-    - remote
     - handoff
     - snapcompact
   idleThresholdTokens: 100000
@@ -91,6 +96,12 @@ display:
   showTokenUsage: true
 task:
   showResolvedModelBadge: true
+  # Cap ACTIVE subagents at 2 (a semaphore on concurrency); total
+  # instantiations over a session are uncapped.
+  maxConcurrency: 2
+  agentModelOverrides:
+    # scout/research runs on frank-small at xhigh thinking (the smol role)
+    scout: "@smol"
 snapcompact:
   systemPrompt: none
   toolResults: false