feat: unify Docker serving configuration in YAML

- Add server.py --config serve.yaml; explicit CLI flags override YAML
- Add scripts/serve.sh and serve_runtime.py for the Compose lifecycle
- Template server/cpu ports and param mounts in docker-compose.yml
- Document schema in docs/developer/docker-serving.md and params guide
- Add tests for runtime parsing and server CLI merge logic

docs/guides/inference.md

@@ -171,6 +171,31 @@ InferenceEngine
 
 `GenerateResult` uses `Condition` for non-streaming (`wait_completion()`) and `Event` for streaming (`wait()`). Stream callback is `cb(token)`.
 
+## Launching the Server
+
+`scripts/tools/server.py` accepts every option as a CLI flag or from a YAML
+config file (`--config serve.yaml`); explicit CLI flags override YAML values.
+The YAML `server:` section mirrors the flags:
+
+```yaml
+server:
+  host: 0.0.0.0
+  port: 8000
+  device: cuda
+  dtype: bfloat16
+  max_batch_size: 16
+  max_seq_len: null
+```
+
+```bash
+python scripts/tools/server.py --config serve.yaml
+python scripts/tools/server.py --config serve.yaml --port 9000  # CLI wins
+```
+
+In Docker, `scripts/serve.sh` drives the same YAML (a `runtime:` section
+controls ports/GPU/mounts); see
+[Docker Serving](../developer/docker-serving.md).
+
 ## HTTP API
 
 ```

docs/guides/params.md

@@ -203,6 +203,7 @@ nohup python scripts/tools/train.py \
 
 | Parameter | Type | Default | Description |
 |-----------|------|---------|-------------|
+| `--config`, `-c` | path | `None` | Serving YAML config. CLI flags override YAML values |
 | `--host` | str | `0.0.0.0` | Host address |
 | `--port` | int | `8000` | Port number |
 | `--param_path` | path | `project_root/params` | Path to model parameters |
@@ -217,6 +218,22 @@ Usage:
 python scripts/tools/server.py --param_path ./params --device cuda --dtype bfloat16
 ```
 
+YAML config (a `server:` section; explicit CLI flags override YAML values):
+```bash
+python scripts/tools/server.py --config serve.yaml
+```
+```yaml
+server:
+  host: 0.0.0.0
+  port: 8000
+  device: cuda
+  dtype: bfloat16
+  max_batch_size: 16
+  max_seq_len: null
+```
+`serve.yaml` also carries a `runtime:` section for the Docker wrapper; see
+[Docker Serving](../developer/docker-serving.md).
+
 See [Inference Guide](inference.md) for HTTP API documentation.
 
 ## Generate (`generate.py`)