refactor(simulation): move content/ under server/ (#669)

Content files (RON templates, YAML campaigns, gauntlet data) are consumed
exclusively by the server. Colocate them at server/content/ and update all
path references in Rust source, tooling scripts, and schema files.

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

server/content/global/knowledge/knowledge.yaml

@@ -0,0 +1,32 @@
+# Fact catalog: knowledge
+# Operational knowledge — ring procedures, social dynamics, institutional mechanics
+# Source: docs/design/knowledge-vocabulary-v01.md §4.4 (#368)
+
+facts:
+
+  - fact_id: knowledge.ring_routing_knowledge
+    description: Full knowledge of the ring's drop routes and timing protocols
+    typical_confidence: knows_details
+    characters: [smuggler]
+    notes: "Smuggler starts at knows_details (Background). Not available to detective through normal investigation paths."
+
+  - fact_id: knowledge.ring_bar_operations
+    description: The bar (The Last Shift) has a role in ring communications or social cover
+    typical_confidence: knows_of
+    characters: [smuggler, detective]
+
+  - fact_id: knowledge.bar_back_room_significance
+    description: The bar's back room is significant — meeting space, handoff point, or storage
+    typical_confidence: suspects
+    characters: [detective]
+
+  - fact_id: knowledge.bar_ring_awareness
+    description: Bar regulars have varying levels of awareness of the ring — open secret at some level
+    typical_confidence: knows_of
+    characters: [smuggler, detective]
+
+  - fact_id: knowledge.kael_exit_plan
+    description: Kael has a specific exit plan — timing, conditions, contact
+    typical_confidence: knows_details
+    characters: [smuggler, detective]
+    notes: "Only available through Kael's deep trust disclosure or independent investigation"