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/models.yml

@@ -1,4 +1,6 @@
-# Imported from ~/.pi/agent/models.json (pi agent settings)
+# OMP agent model registry — single source of truth (OMP is the primary
+# harness; there is no second copy to keep in sync).
+# Conversion notes from the pi-era import:
 # - apiKey "EMPTY" -> auth: none (keyless local endpoint)
 # - thinkingLevelMap {max: xhigh} -> compat.reasoningEffortMap
 providers:
@@ -57,6 +59,11 @@ providers:
     models:
       - id: frank-large
         name: "frank-large (dankclaw-gpu)"
+        # Server-side compaction always runs on frank-medium (see
+        # compaction.remoteEndpoint in config.yml); this steers the
+        # compaction model candidate so the wire model id stays valid
+        # on the frank-medium endpoint even from a frank-large session.
+        compactionModel: llamacpp (dankserver)/frank-medium
         # halogen-flash-server. The model's native window is 262,144, but this
         # deployment caps a conversation at 200,192 — exactly half of its
         # 400,384-position KV pool, so two 200k conversations are resident at
@@ -65,7 +72,13 @@ providers:
         contextWindow: 200192
         # HALOGEN_MAX_TOKENS_CAP: above this a request is a 400 rather than a
         # silent truncation, and thinking counts against the budget.
-        maxTokens: 65536
+        # maxTokens must also survive the harness compaction gap: OMP compacts at
+        # 70% of contextWindow = 140,134, so a pre-compaction prompt can legally
+        # reach that height. 140,134 + 57,344 = 197,478 <= 200,192, which closes
+        # the dead zone that 400'd a request on 2026-09-17 (prompt 138,898 +
+        # budget 64,000 = 202,898 > 200,192: above the server's fit check, below
+        # the compaction trigger). Any budget > 60,058 reopens the zone.
+        maxTokens: 57344
         reasoning: true
         # Text only as of 2026-09-16: the vision tower moved to frank-small and
         # this server refuses image content parts.
@@ -96,6 +109,10 @@ providers:
     models:
       - id: frank-small
         name: "frank-small (dankclaw-3090)"
+        # See frank-large: server-side compaction always runs on
+        # frank-medium, so the wire model id stays valid from a
+        # frank-small session.
+        compactionModel: llamacpp (dankserver)/frank-medium
         # Dankclaw's RTX 3090: mainline llama.cpp serving
         # HauhauCS/Gemma4-12B-QAT-Uncensored-HauhauCS-Balanced at Q4_K_M.
         # The MTP head ships as a separate assistant sidecar