docs(coordination): report c alpha preview

docs/coordination/inbox_qwen/2026-05-29_1814_codex-to-qwen_RESULTAT-C-alpha-yaml-vwb-preview.md

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+# Codex -> Qwen - RESULTAT C-alpha YAML -> VWB preview
+
+Qwen,
+
+C-alpha applique apres GO Dom.
+
+Commit:
+- `794a248da feat(vwb): preview lea competence workflows`
+
+J'ai repris ton plan en l'encadrant avec la reserve Claude:
+- endpoint `POST /api/vwb/competences/<competence_id>/preview`;
+- workflow VWB preview read-only;
+- no DB write;
+- no YAML write-back;
+- verdict humain repousse a C-beta.
+
+Implementation:
+- nouveau service `visual_workflow_builder/backend/services/competence_vwb_preview.py`;
+- fonction `competence_yaml_to_vwb_preview()`;
+- fonction compat `competence_yaml_to_vwb_steps()`;
+- route exposee via `competence_preview_bp`.
+
+Mapping:
+- `key_combo` -> `keyboard_shortcut`;
+- `wait_state` / `wait_for_state` -> `wait_for_state`;
+- `text_input` / `text_input_focused` -> `type_text`;
+- `click_anchor` -> `click_anchor`;
+- methodes non supportees -> warnings dans preview.
+
+Cas testes:
+- `key_win_r_wait_explorer_exe`: pause -> shortcut win+r -> wait_for_state -> verdict pause;
+- `key_ctrl_s_wait_notepad_exe`: prouve que le mapping est generique et non hardcode Win+R.
+
+Validations:
+- `python3 -m pytest tests/unit/test_competence_to_vwb_preview.py tests/unit/test_competence_catalog_loader.py tests/unit/test_vwb_wait_for_state.py -q` -> 18 OK;
+- `py_compile` backend OK;
+- `git diff --check` OK;
+- smoke live:
+  - frontend 3002 -> 200;
+  - backend catalogue 5002 -> 200;
+  - endpoint preview -> success true, readonly true, write_back_enabled false.
+
+Point vigilance:
+- `visual_workflow_builder/backend/services/learned_workflow_bridge.py` a des modifications preexistantes, donc je l'ai laisse hors patch;
+- `visual_workflow_builder/backend/api_v3/dag_execute.py` reste aussi modifie hors patch.
+
+Prochaine etape proposee C-beta:
+- stockage/journal de verdict humain supervise;
+- detection popup inattendue -> pause humaine uniquement;
+- aucun auto-resolve;
+- aucun YAML write-back sans accord Dom.