fix(viz): forzar circulo a todos los nodos salvo Table; tapar energia inicial

- types_registry.cpp::apply_types_yaml: tras aplicar el yaml, sobreescribe
  shape de cada tipo: 'Table' → SHAPE_SQUARE, todo lo demas → SHAPE_CIRCLE.
  Convencion fija — ediciones futuras del Type Editor (issue 0007) o del
  yaml no rompen la regla.
- examples/types.yaml + project_manager.cpp seed: quitar campo `shape`,
  añadir tipo Table (cuadrado) y relacion CONTAINS_ROW (preview de 0010).
- main.cpp run_force_step: damping=0.7, max_velocity=8 explicitos para
  evitar que el grafo "explote" al cargar grafos pequenos.
- AppState repulsion: 1500 → 800 (lo mismo, aplicado al force layout).

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

examples/types.yaml

@@ -1,60 +1,58 @@
 # Ejemplo OSINT — tipos comunes en investigacion de entidades.
 # Color como "#RRGGBB" (con o sin alpha "#RRGGBBAA").
-# Shapes: circle | square | diamond | hex | triangle | rounded_square
+# Shapes: el campo `shape` se ignora — todos los nodos son circulo, salvo
+# el tipo "Table" que es cuadrado (regla de forma aplicada en
+# types_registry.cpp::apply_types_yaml).
 # Iconos: nombres ti-* mapeados en types_registry.cpp::tabler_codepoint_by_name
 # Estilos de relacion: solid | dashed | dotted
 
 entities:
   - name: Person
     color: "#5B8DEF"
-    shape: circle
     icon: ti-user
 
   - name: Email
     color: "#58CA8C"
-    shape: square
     icon: ti-mail
 
   - name: Domain
     color: "#F4B860"
-    shape: diamond
     icon: ti-world
 
   - name: Phone
     color: "#E36AC0"
-    shape: hex
     icon: ti-phone
 
   - name: Org
     color: "#C780E8"
-    shape: triangle
     icon: ti-building
 
   - name: IBAN
     color: "#52CDF2"
-    shape: rounded_square
     icon: ti-building-bank
 
   - name: Account
     color: "#7FD3A0"
-    shape: rounded_square
     icon: ti-id
 
   - name: Document
     color: "#C9C9C9"
-    shape: square
     icon: ti-file
 
   - name: Address
     color: "#FFB870"
-    shape: diamond
     icon: ti-map-pin
 
   - name: Url
     color: "#89E0FC"
-    shape: hex
     icon: ti-link
 
+  # Nodo tabla — cuadrado (regla de forma). Issue 0010: contenedor con
+  # filas que son nodos del grafo.
+  - name: Table
+    color: "#0EA5E9"
+    icon: ti-database
+
 relations:
   - name: owns
     color: "#888888"
@@ -75,3 +73,8 @@ relations:
   - name: member_of
     color: "#C780E8"
     style: dashed
+
+  # Pertenencia de fila a tabla (issue 0010).
+  - name: CONTAINS_ROW
+    color: "#0EA5E9"
+    style: dotted