feat(db): normalize star systems into multi-table schema with GJ primary keys

Replaces flat star_systems table with 7 normalized tables: star_systems,
system_gates (with hop_distance_from_gateway), system_history,
historical_events (1:N), system_economy, system_factions, system_culture.

Primary key is now the GJ astronomical ID (e.g., "GJ 244A") — S-number
identifiers removed entirely. The astronomical_id column is dropped as
redundant. Database moved to server/data/systems.db (ships with game).

10 core systems fully populated with structured data.

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

db/schema.sql

@@ -95,107 +95,6 @@ CREATE INDEX IF NOT EXISTS idx_decision_refs_source ON decision_refs(source_id);
 CREATE INDEX IF NOT EXISTS idx_decision_refs_target ON decision_refs(target_id);
 
 -- ---------------------------------------------------------------------------
--- Star Systems Wiki Mirror
--- Populated by: python3 tooling/db/wiki_sync.py sync
--- Source: wiki/star-systems/*/index.md (YAML frontmatter)
+-- Star Systems live in a separate database: server/data/systems.db
+-- Schema: server/data/systems-schema.sql
 -- ---------------------------------------------------------------------------
-
-CREATE TABLE IF NOT EXISTS star_systems (
-    -- I. Identity and Location
-    system_id TEXT PRIMARY KEY,
-    astronomical_id TEXT NOT NULL,
-    proper_name TEXT,
-    system_name TEXT,
-    star_type TEXT,
-    geographic_sector TEXT,
-    geographic_band TEXT,
-    political_zone TEXT,
-
-    -- II. Physical Character
-    habitable_planet_count INTEGER,
-    inhabited_planet_count INTEGER,
-    asteroid_belt TEXT,
-    gas_giant TEXT,
-    habitability_profile TEXT,
-
-    -- III. Gate Infrastructure
-    horizon_station INTEGER,  -- boolean 0/1
-    aperture_count INTEGER,
-    gate_connections INTEGER,
-    gate_topology TEXT,
-    span_gate_network TEXT,
-
-    -- IV. Settlement History
-    settlement_wave TEXT,
-    founding_motivation TEXT,
-    founding_culture_primary TEXT,
-    founding_culture_secondary TEXT,
-    cultural_persistence TEXT,
-    historical_event TEXT,
-    historical_event_age_years INTEGER,
-    religious_status TEXT,
-    religious_generation_count INTEGER,
-
-    -- V. Economic Life
-    economic_tier TEXT,
-    population TEXT,
-    economic_base_primary TEXT,
-    economic_base_secondary TEXT,
-    distribution_index TEXT,
-    imprint_access TEXT,
-    supply_dependency TEXT,
-
-    -- VI. Governance
-    governance_type TEXT,
-    dominant_faction TEXT,
-    primary_fault_line TEXT,
-    secondary_fault_line TEXT,
-
-    -- VII. Faction Presence
-    assembly_presence TEXT,
-    commission_presence TEXT,
-    syndic_presence TEXT,
-    syndic_type TEXT,
-    separatist_presence TEXT,
-    separatist_type TEXT,
-    institute_presence TEXT,
-    guardians_presence TEXT,
-    faction_notes TEXT,
-
-    -- VIII. Cultural Voice
-    cultural_register TEXT,
-    cultural_register_secondary TEXT,
-    ambient_anxiety TEXT,
-    local_pride TEXT,
-    atmospheric_tone TEXT,
-    atmospheric_tone_secondary TEXT,
-    active_situation TEXT,
-    silence_threshold TEXT,
-    silence_topic TEXT,
-
-    -- IX. Political Character
-    earth_alignment TEXT,
-    earth_proximity TEXT,
-    earth_tension TEXT,
-
-    -- X. Narrative Profile
-    primary_archetype TEXT,
-    secondary_archetype TEXT,
-    narrative_notable TEXT,
-    narrative_hook TEXT,
-    generation_priority TEXT,
-
-    -- XI. Content Notes
-    stability_index TEXT,
-    system_volatility TEXT,
-    cultural_corridor TEXT,
-    calibration_note TEXT,
-
-    synced_at TEXT DEFAULT (datetime('now'))
-);
-
-CREATE INDEX IF NOT EXISTS idx_star_systems_astro ON star_systems(astronomical_id);
-CREATE INDEX IF NOT EXISTS idx_star_systems_sector ON star_systems(geographic_sector);
-CREATE INDEX IF NOT EXISTS idx_star_systems_wave ON star_systems(settlement_wave);
-CREATE INDEX IF NOT EXISTS idx_star_systems_topology ON star_systems(gate_topology);
-CREATE INDEX IF NOT EXISTS idx_star_systems_star_type ON star_systems(star_type);