feat(simulation): wire NPC pool generation and authored triangle instantiation (#176, #188)

Production startup now spawns 23 Sova NPCs with EntanglementTag
(Flat/Intrigue) based on triangle_membership. Three-phase spawn:
entity creation, cross-reference resolution, and authored triangle
instantiation. Five triangles (3 ActiveFork, 2 PassiveTension per
D-087) with deterministic IDs via FNV-1a hashing.

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

content/campaigns/main/systems/krenn/stations/sova/districts/transit/triangles/worried-knowledge.yaml

@@ -1,7 +1,8 @@
-# Triangle 2: Worried Knowledge — unreported evidence and protective silence
-# Active fork — Sera's choice about what to do with what she knows
+# Triangle 3: Worried Knowledge — unreported evidence and protective silence
+# Passive tension (D-087) — background pressure, not a direct player decision point
 canonical_id: worried-knowledge
 display_name: "Worried Knowledge"
+classification: passive_tension
 description: >
   Sera Venn (Commission field tech, detective's FRIEND) is sitting on
   unreported evidence about Kael's manifest discrepancies. She's protecting

content/campaigns/main/systems/krenn/stations/sova/districts/transit/triangles/worried-partner.yaml

@@ -1,7 +1,8 @@
-# Triangle 4: Worried Partner — ring pressure on personal relationships
-# Active fork — the emotional heart of the smuggler's FRIEND arc
+# Triangle 5: Worried Partner — ring pressure on personal relationships
+# Passive tension (D-087) — background pressure, not a direct player decision point
 canonical_id: worried-partner
 display_name: "Worried Partner"
+classification: passive_tension
 description: >
   Kael Davan (dock worker, ring member, smuggler's FRIEND) is under
   increasing ring pressure from Devra (ring coordinator). Naia Tamm