docs: align GPT-5.5 model references

docs/examples/coding-focused.jsonc

@@ -14,7 +14,7 @@
 
     // Heavy lifter: maximum autonomy for coding tasks
     "hephaestus": {
-      "model": "openai/gpt-5.4",
+      "model": "openai/gpt-5.5",
       "prompt_append": "You are the primary implementation agent. Own the codebase. Explore, decide, execute. Use LSP and AST-grep aggressively.",
       "permission": { "edit": "allow", "bash": { "git": "allow", "test": "allow" } },
     },
@@ -26,7 +26,7 @@
     },
 
     // Debugging and architecture
-    "oracle": { "model": "openai/gpt-5.4", "variant": "high" },
+    "oracle": { "model": "openai/gpt-5.5", "variant": "high" },
 
     // Fast docs lookup
     "librarian": { "model": "github-copilot/grok-code-fast-1" },
@@ -64,10 +64,10 @@
     "visual-engineering": { "model": "google/gemini-3.1-pro", "variant": "high" },
 
     // Deep autonomous work
-    "deep": { "model": "openai/gpt-5.4" },
+    "deep": { "model": "openai/gpt-5.5" },
 
     // Architecture decisions
-    "ultrabrain": { "model": "openai/gpt-5.4", "variant": "xhigh" },
+    "ultrabrain": { "model": "openai/gpt-5.5", "variant": "xhigh" },
   },
 
   // High concurrency for parallel agent work