Add core encounter processing pipeline

Filter by game version, parse levels and rate variants across all
generations, aggregate encounters by pokemon+method, and build
parent/child route hierarchy. Also completes encounter method coverage
(73/73) and pokemon form mapping (1180/1181) with manual overrides.

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

.beans/nuzlocke-tracker-rfg0--core-encounter-processing.md

@@ -1,11 +1,11 @@
 ---
 # nuzlocke-tracker-rfg0
 title: Core encounter processing
-status: todo
+status: in-progress
 type: task
 priority: normal
 created_at: 2026-02-11T08:43:12Z
-updated_at: 2026-02-11T08:43:33Z
+updated_at: 2026-02-11T09:03:52Z
 parent: nuzlocke-tracker-bs05
 blocking:
     - nuzlocke-tracker-gkcy
@@ -15,9 +15,9 @@ Implement the core logic that transforms raw PokeDB encounter records into our i
 
 ## Checklist
 
-- [ ] **Filter by game version**: Given a target game slug, select only encounters where `version_identifiers` includes that game
-- [ ] **Parse level strings**: Convert "2 - 4" → min_level=2, max_level=4; "67" → min_level=67, max_level=67
-- [ ] **Handle rate variants per generation**:
+- [x] **Filter by game version**: Given a target game slug, select only encounters where `version_identifiers` includes that game
+- [x] **Parse level strings**: Convert "2 - 4" → min_level=2, max_level=4; "67" → min_level=67, max_level=67
+- [x] **Handle rate variants per generation**:
   - Gen 1/3/6: use `rate_overall` directly as `encounter_rate`
   - Gen 2/4: `rate_morning`, `rate_day`, `rate_night` — flatten to max or average for `encounter_rate`
   - Gen 5: `rate_spring` through `rate_winter` — flatten similarly
@@ -25,9 +25,9 @@ Implement the core logic that transforms raw PokeDB encounter records into our i
   - Gen 8 Legends Arceus: `during_*` / `while_*` booleans — convert to a presence-based rate
   - Gen 9 Sc/Vi: `probability_*` fields (spawn weights, not percentages) — normalize to percentages
   - Preserve raw variant data in a way that nuzlocke-tracker-oqfo can use later
-- [ ] **Aggregate encounters**: Group by (pokemon, method, location_area) and merge level ranges / rates where appropriate (same logic as the Go tool's aggregation)
-- [ ] **Group by location area**: Collect all encounters for a location area into a route structure
-- [ ] **Handle parent/child routes**: Multi-area locations (e.g. Safari Zone) should produce parent routes with children, matching the existing hierarchical format
+- [x] **Aggregate encounters**: Group by (pokemon, method, location_area) and merge level ranges / rates where appropriate (same logic as the Go tool's aggregation)
+- [x] **Group by location area**: Collect all encounters for a location area into a route structure
+- [x] **Handle parent/child routes**: Multi-area locations (e.g. Safari Zone) should produce parent routes with children, matching the existing hierarchical format
 
 ## Notes
 - Rate parsing needs to handle percentage strings like "40%" as well as bare numbers

.beans/nuzlocke-tracker-zno2--build-reference-data-mappings.md

@@ -1,11 +1,11 @@
 ---
 # nuzlocke-tracker-zno2
 title: Build reference data mappings
-status: in-progress
+status: completed
 type: task
 priority: normal
 created_at: 2026-02-11T08:43:02Z
-updated_at: 2026-02-11T08:50:29Z
+updated_at: 2026-02-11T09:03:01Z
 parent: nuzlocke-tracker-bs05
 blocking:
     - nuzlocke-tracker-rfg0