Move CEO (Countess) from Opus to Sonnet with high effort

CEO heartbeat is mostly mechanical — repo sync, config PATCH,
delegation routing, PR merging. Sonnet on high effort handles
this reliably at a fraction of Opus token cost.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

COMPANY.md

@@ -11,7 +11,7 @@ This directory contains basic company information and the canonical definitions
 
 | Agent | Role | Title | Adapter | Model | Reports To |
 |---|---|---|---|---|---|
-| [Countess von Containerheim](./ceo/CONFIG.md) | `ceo` | Chief Executive Officer | `claude_local` | `claude-opus-4-6` | — |
+| [Countess von Containerheim](./ceo/CONFIG.md) | `ceo` | Chief Executive Officer | `claude_local` | `claude-sonnet-4-6` | — |
 | [Null Pointer Nancy](./cto/CONFIG.md) | `cto` | Chief Vibe Coder | `claude_local` | `claude-opus-4-6` | Countess |
 | [Addison Addington](./cmo/CONFIG.md) | `cmo` | Chief Sign Spinner | `opencode_local` | `openrouter/minimax/minimax-m2.7` | Countess |
 | [Kubectl Karen](./product/CONFIG.md) | `product` | VP of Product | `claude_local` | `claude-opus-4-6` | Countess |

ceo/CONFIG.md

@@ -35,8 +35,8 @@
     "GITHUB_APP_ID_COUNTESS": { "type": "plain", "value": "3140977" },
     "GITHUB_PEM_PATH_COUNTESS": { "type": "plain", "value": "/paperclip/secrets/github-pems/privilegedescalation-ceo.pem" }
   },
-  "model": "claude-opus-4-6",
-  "effort": "medium",
+  "model": "claude-sonnet-4-6",
+  "effort": "high",
   "graceSec": 15,
   "timeoutSec": 0,
   "maxTurnsPerRun": 80,