chore: ajouter agent_v0/ au tracking git (était un repo embarqué)

Suppression du .git embarqué dans agent_v0/ — le code est maintenant
tracké normalement dans le repo principal.
Inclut : agent_v1 (client), server_v1 (streaming), lea_ui (chat client)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

agent_v0/deploy/windows_client/agent_config.json

@@ -0,0 +1,15 @@
+{
+  "user_id": "demo_user",
+  "user_label": "Démo agent_v0",
+  "customer": "Clinique Demo",
+  "training_label": "Facturation_T2A_demo",
+  "notes": "Session réelle avec clics + screenshots + key combos.",
+  "mode": "enriched",
+  "screenshot_mode": "crop",
+  "screenshot_crop_width": 900,
+  "screenshot_crop_height": 700,
+  "capture_hover": true,
+  "hover_min_idle_ms": 700,
+  "capture_scroll": true,
+  "network_save_path": ""
+}