chore: auto-commit (95 archivos)

- cmd/fn/doctor.go
- cmd/fn/main.go
- cpp/apps/primitives_gallery/playground/tables/CMakeLists.txt
- cpp/apps/primitives_gallery/playground/tables/data_table.cpp
- cpp/apps/primitives_gallery/playground/tables/data_table_logic.cpp
- cpp/apps/primitives_gallery/playground/tables/data_table_logic.h
- cpp/apps/primitives_gallery/playground/tables/self_test.cpp
- cpp/apps/primitives_gallery/playground/tables/tql.cpp
- cpp/apps/primitives_gallery/playground/tables/viz.cpp
- cpp/apps/primitives_gallery/playground/tables/viz.h
- ...

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

python/functions/ml/genconfig_save_json.md

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+---
+name: genconfig_save_json
+kind: function
+lang: py
+domain: ml
+version: "1.0.0"
+purity: impure
+signature: "def genconfig_save_json(cfg: GenerationConfig, path: str) -> str"
+description: "Serializa un GenerationConfig a JSON (pydantic model_dump_json o dataclass fallback) y lo escribe en disco. Crea directorios padre si no existen. Retorna el path absoluto del archivo escrito."
+tags: [ml, generation, json, io, serialization]
+params:
+  - name: cfg
+    desc: "Instancia de GenerationConfig a serializar. Pydantic o dataclass."
+  - name: path
+    desc: "Ruta de destino del archivo JSON. Relativa o absoluta."
+output: "Path absoluto (str) del archivo JSON escrito en disco."
+uses_functions: []
+uses_types:
+  - generation_config_py_ml
+returns: []
+returns_optional: false
+error_type: "error_go_core"
+imports: []
+tested: true
+tests:
+  - "save escribe archivo JSON valido en la ruta indicada"
+  - "save crea directorios padre si no existen"
+  - "json contiene claves en snake_case"
+test_file_path: "python/functions/ml/tests/test_genconfig_json_roundtrip.py"
+file_path: "python/functions/ml/genconfig_save_json.py"
+---
+
+## Ejemplo
+
+```python
+from ml.genconfig_save_json import genconfig_save_json
+from ml.generation_config import GenerationConfig
+from ml.model_ref import ModelRef
+
+cfg = GenerationConfig(
+    prompt="a forest at dusk",
+    seed=123,
+    steps=25,
+    cfg_scale=7.5,
+    sampler="euler",
+    width=512,
+    height=512,
+    model=ModelRef(name="runwayml/stable-diffusion-v1-5", model_type="sd15"),
+)
+
+saved_path = genconfig_save_json(cfg, "/tmp/gen_config.json")
+# saved_path == "/tmp/gen_config.json"
+```
+
+## Notas
+
+Usa pydantic model_dump_json cuando disponible (JSON canonico con snake_case
+interoperable con Go). En entornos sin pydantic usa json.dumps + dataclasses.asdict.
+Los directorios padre se crean con os.makedirs(exist_ok=True).