Add type restriction rule (monolocke)

Adds allowedTypes: string[] to NuzlockeRules. When set, the encounter
selector hides non-matching Pokemon and the routes endpoint filters out
routes with no matching encounters, so only eligible locations appear.

Type picker UI in RulesConfiguration; active restriction shown in
RuleBadges. Backend accepts allowed_types query param and joins through
RouteEncounter.pokemon to filter by type.

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

.beans/nuzlocke-tracker-knnc--add-staticlegendary-clause-rule.md

@@ -1,11 +1,11 @@
 ---
 # nuzlocke-tracker-knnc
 title: Add static encounter filter rule
-status: in-progress
+status: completed
 type: feature
 priority: normal
 created_at: 2026-02-20T19:56:27Z
-updated_at: 2026-02-21T11:03:12Z
+updated_at: 2026-02-21T11:04:45Z
 parent: nuzlocke-tracker-49xj
 ---