feat(simulation): add social site template schema types

Implements #163 (RoleSchema), #164 (SpaceSpec), #165 (TemplateOwnership
+ TemplateReferenceMap), #106 (TriangleDef), #107 (intra-template
triangle generation), and #250 (triangle escalation system) as the
foundational Tier 2 template system per D-025.

New content/template module with YAML-deserializable schema types,
ECS components for ownership/triangle state, escalation system
running on game-minute boundaries, and TriangleCrisisEvent emission.
Sample YAML templates at server/data/templates/.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/data/templates/dock-worker.yaml

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+# Sample role schema for the dock-worker role in the terminal social site.
+# Spec ref: D-023 (Tier 2 templates), D-024 (10-axis model), D-025 (social site)
+#
+# Tile scale note (D-066): tile_count_* fields are in SIM tiles (0.5m each).
+# 1 visual tile = 2 sim tiles. A 15-40 visual tile space = 30-80 sim tiles.
+
+role_id: "dock-worker"
+required_traits:
+  - Honest
+  - Social
+skill_focus:
+  - Technical
+  - Observation
+relationship_constraints:
+  - with_role: "logistics-manager"
+    kind: Colleague
+    required_trust:
+      min: -2
+      max: 4
+  - with_role: "ring-contact"
+    kind: Colleague
+    required_trust:
+      min: -4
+      max: 0
+routine_template:
+  - phase: morning
+    location: "terminal-cargo-bay"
+  - phase: afternoon
+    location: "terminal-cargo-bay"
+  - phase: evening
+    location: "bar-last-shift"

server/data/templates/terminal-social-site.yaml

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+# Sample space spec for the terminal social site (Sova Logistics Hub).
+# Spec ref: D-025 (15-40 visual tiles = 30-80 sim tiles), D-064 (dual-scale grid)
+#
+# Tile scale (D-066): all tile counts are SIM tiles (0.5m each).
+# Terminal: 44×28 visual tiles = 88×56 sim tiles = 4928 sim tiles.
+# Using a subsection for one functional zone: ~44×8 visual = 88×16 sim = 1408 sim.
+
+tile_count_min: 30
+tile_count_max: 80
+sightline_zones:
+  - name: "loading-floor"
+    radius: 8     # 4m clear sightline across the loading area
+  - name: "reception-desk"
+    radius: 4     # 2m clear sightline at the desk
+  - name: "cargo-staging"
+    radius: 6     # 3m clear sightline in staging area
+privacy_level: SemiPrivate
+traffic_pattern: Destination

server/data/templates/terminal-triangle-01.yaml

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+# Sample triangle definition: T4 Drin-System-Ring (D-087 active fork).
+# Spec ref: D-024 (triangles as atomic social unit), D-087 (T4 configuration),
+#           D-089 (self-contained, no cross-triangle cascade)
+#
+# Note: triangle_id is computed at world-gen time from seed + roles.
+# The value below is a placeholder for YAML authoring — the runtime
+# calls TriangleId::from_seed_and_roles() to derive the actual ID.
+
+triangle_id: 0
+roles:
+  - "ring-leader"
+  - "dock-worker"
+  - "logistics-manager"
+conflict_type: ResourceCompetition
+interest_axes:
+  - Want
+  - Secret
+  - Relationships
+relationship_constraints:
+  - with_role: "dock-worker"
+    kind: Subordinate
+    required_trust:
+      min: -2
+      max: 2