docs: update default model examples to gpt-5 and gemini-3.5-flash

docs/configuration/overview/index.md

@@ -194,7 +194,7 @@ API keys and secrets are read from environment variables — never stored in con
 
 | Variable                            | Description                                                                                          |
 | ----------------------------------- | ---------------------------------------------------------------------------------------------------- |
-| `DOCKER_AGENT_DEFAULT_MODEL`        | Default model used when none is specified, in `provider/model` form (e.g. `openai/gpt-5-mini`).      |
+| `DOCKER_AGENT_DEFAULT_MODEL`        | Default model used when none is specified, in `provider/model` form (e.g. `openai/gpt-5`).      |
 | `DOCKER_AGENT_MODELS_GATEWAY`       | Route model traffic through a gateway. Equivalent to the `--models-gateway` flag.                    |
 | `DOCKER_AGENT_HIDE_TELEMETRY_BANNER`| Set to `1` to suppress the first-run telemetry notice.                                               |
 | `DOCKER_AGENT_AUTO_UPDATE`          | Set to a truthy value (`1`, `true`, `yes`, `on`) to let standalone release binaries self-update before running. See [Optional Self-Updates]({{ '/getting-started/installation/#optional-self-updates' | relative_url }}). |

docs/providers/google/index.md

@@ -38,7 +38,7 @@ export GOOGLE_CLOUD_LOCATION="us-central1"
 ```yaml
 agents:
   root:
-    model: google/gemini-2.5-flash
+    model: google/gemini-3.5-flash
 ```
 
 ### Named Model
@@ -47,7 +47,7 @@ agents:
 models:
   gemini:
     provider: google
-    model: gemini-2.5-flash
+    model: gemini-3.5-flash
     temperature: 0.5
 ```
 

docs/providers/openai/index.md

@@ -22,7 +22,7 @@ export OPENAI_API_KEY="sk-..."
 ```yaml
 agents:
   root:
-    model: openai/gpt-5-mini
+    model: openai/gpt-5
 ```
 
 ### Named Model
@@ -31,7 +31,7 @@ agents:
 models:
   gpt:
     provider: openai
-    model: gpt-5-mini
+    model: gpt-5
     temperature: 0.7
     max_tokens: 4000
 ```