split data in separate files

docs/buildings/eel-grabber-albion.md

@@ -0,0 +1,36 @@
+# Eel Grabber (Albion)
+
+**Entity Type:** Building
+
+## Properties
+
+| Field | Value |
+|-------|-------|
+| Region | Albion |
+| Category | Production / Food (Marsh fishery) |
+| Required Tier | [Tier I](../population-tiers/tier-i.md) |
+| Cycle Time | Unknown (likely 60s per research wording; not asserted) |
+
+## Description
+
+Marshland fish producer (Eels).
+
+## Costs
+
+**Build Cost:** Unknown
+
+**Maintenance:** Unknown
+
+## Placement
+
+| Requirement | Value |
+|-------------|-------|
+| Constraints | Marshland placement required (Albion-specific) |
+
+## Usage Patterns
+
+Place in marsh; pair with coastal cockles early.
+
+## Common Pitfalls
+
+Trying to place on coast; this is a marsh-only building.