codex: update model/effort and refresh system skills

.codex/config.toml

@@ -1,10 +1,10 @@
-model = "gpt-5.4"
+model = "gpt-6-sol"
 sandbox_mode = "workspace-write"
 web_search = "cached"
-model_reasoning_effort = "high"
+model_reasoning_effort = "medium"
 plan_mode_reasoning_effort = "xhigh"
 personality = "pragmatic"
-service_tier = "fast"
+service_tier = "default"
 
 [sandbox_workspace_write]
 network_access = true
@@ -24,10 +24,24 @@ trust_level = "trusted"
 [projects."/home/rsydn/Projects/Personal/autodegen"]
 trust_level = "trusted"
 
+[notice]
+hide_rate_limit_model_nudge = true
+
 [notice.model_migrations]
 "gpt-5.3-codex" = "gpt-5.4"
 
 [features]
+hooks = true
 use_linux_sandbox_bwrap = true
 multi_agent = true
 prevent_idle_sleep = true
+
+[tui.model_availability_nux]
+"gpt-5.5" = 2
+"gpt-5.6-sol" = 3
+gpt-6-astra = 4
+
+[hooks.state]
+
+[hooks.state."/home/rsydn/.codex/hooks.json:session_start:0:0"]
+trusted_hash = "sha256:59c8ff194c08c26574eae42a2706bdb6530e7202785c68cbf1898f135c4f8a85"