feat(rust): NPC profile and placement routes, the event picker, triggers and titles (runicnpc stage 4)

Admin: /admin/rust/npcs for profiles (create, change, delete, restore a
replaced one, push now) and each server's placements (list, add from a map
point, change, remove, rename, respawn). Public: the profiles a leaderboard
ranks by, one profile's ranking counted as the profile says (D247, D250), and
one player's kills by profile (D252). Player: your own kills by profile.

The Place NPCs step offers the site's profiles first, then Rust's own
(D243). rust.npc.died and rust.npc.health are triggers a phase can wait on.
A title rule can rank a profile's kills. Swagger fragment, engagement and
route manifests regenerated.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01E14m6SuuY6i1vASFeGDBeY

server/db/schema.sql

@@ -1337,3 +1337,8 @@ CREATE TABLE IF NOT EXISTS rust_npc_kills (
   KEY idx_rust_npc_kills_profile (profile, server_id, wipe_id),
   KEY idx_rust_npc_kills_site (site_profile_id)
 ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
+
+-- A title rule on a profile's kills names the site profile it ranks (runicnpc
+-- stage 4, D250). Null for every other stat. No foreign key: a deleted profile
+-- leaves a rule that ranks nobody, which the form shows and an admin removes.
+ALTER TABLE rust_title_rules ADD COLUMN IF NOT EXISTS profile_id INT UNSIGNED NULL;