refactor(simulation): strip archetype trace + HeritageRoot per cascade (#877, #878)

Sprint 37 dead-code sweep closing out two stale supersession chains:

#877 (D-167, 2026-03-24): Removes HeritageRoot type alias and
ZonePaletteModifier::Heritage variant from server/src/simulation/
generator.rs. The 7 abstract heritage roots were retired in favour of
the corridor cultural system; these two stubs were the only remaining
references.

#878 (D-032 + cascade rule): Strips the entire CharacterArchetype
(Smuggler/Detective) trace from the server. Per lead direction
2026-04-21 and the development cascade (CLAUDE.md), character/NPC/
verb-differentiation/monologue code is Phase 6 detail that should
not exist in code yet. The running archetype trace was pre-cascade
filler, not production — production is only the client's character-
creation UI and insert screens (client follow-up in #882).

Deleted:
- CharacterArchetype enum + StartupMessage.character_archetype field
- archetype_verb_label() + archetype branch of apply_phase2_verb_filter
  (D-057 character-verb differentiation — marked superseded)
- MonologueState.character partitioning
- Gauntlet archetype plumbing (setup_gauntlet no longer takes an archetype)
- server/content/schemas/drama_module.schema.yaml (zero Rust consumers)
- server/content/modules/tier1/smuggling_ring_v0_1.yaml
- server/tests/archetype_monologue.rs (regression guard for the removed system)
- server/tests/v01_integration_playthrough.rs (archetype-dependent)

Decision updates:
- decisions/content.md D-032 supersession rewritten to cite the cascade
  (v0.2 drop invalidated the prior D-117 framing).
- decisions/content.md D-035 tag taxonomy: `character` enum footnote
  updated; field noted as unused, do not reintroduce without a
  confirmed Phase 6 design.
- decisions/perception.md D-057: archetype-verb differentiation marked
  superseded.

Also bundles the types.rs version-field removal from #874 since the
file was already touched here.

Full trace audit in docs/architecture/sprint-37-878-audit.md.

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

server/src/test_world/mod.rs

@@ -95,7 +95,7 @@ pub const MAP_HEIGHT: i32 = 125;
 /// is intentional for deterministic test setups but should be revisited
 /// if Gauntlet is ever served by the production startup pipeline.
 #[cfg(feature = "gauntlet")]
-pub fn setup_gauntlet(app: &mut App, archetype: crate::bridge::types::CharacterArchetype) {
+pub fn setup_gauntlet(app: &mut App) {
     // Start with a fully blocked map, then carve rooms and corridors.
     let mut walkability = WalkabilityMap::new_blocked(MAP_WIDTH, MAP_HEIGHT, 1);
 
@@ -190,12 +190,8 @@ pub fn setup_gauntlet(app: &mut App, archetype: crate::bridge::types::CharacterA
 
     // --- Player (StableId 0) ---
     // Spawn at Hub center: absolute (50, 58)
-    let profile = MovementProfile::smuggler();
+    let profile = MovementProfile::default();
     let player_pos = TilePosition::new(50, 58, 0);
-    let monologue_state = MonologueState {
-        character: archetype.as_monologue_key().to_string(),
-        ..Default::default()
-    };
     let player = app
         .world_mut()
         .spawn((
@@ -204,7 +200,7 @@ pub fn setup_gauntlet(app: &mut App, archetype: crate::bridge::types::CharacterA
             Facing::default(),
             KnowledgeGraph::new(),
             NearbyInteractionBuffer::default(),
-            monologue_state,
+            MonologueState::default(),
             MonologueBuffer::default(),
             SprintAnomalyQueue::default(),
             ScanEventBuffer::default(),
@@ -216,7 +212,6 @@ pub fn setup_gauntlet(app: &mut App, archetype: crate::bridge::types::CharacterA
             crate::simulation::pressure::CharacterPressure::default(),
         ))
         .id();
-    app.world_mut().entity_mut(player).insert(archetype);
     registry.register(player);
 
     // --- Hub signs (StableId 1-4) ---
@@ -699,10 +694,7 @@ mod tests {
         app.add_plugins(crate::knowledge::KnowledgePlugin);
         app.add_plugins(crate::npc::NpcPlugin);
 
-        setup_gauntlet(
-            &mut app,
-            crate::bridge::types::CharacterArchetype::default(),
-        );
+        setup_gauntlet(&mut app);
 
         // Run all 29 world-query invariants against the fully-initialized gauntlet world.
         invariants::run_invariants(app.world_mut());
@@ -722,10 +714,7 @@ mod tests {
         app.add_plugins(crate::knowledge::KnowledgePlugin);
         app.add_plugins(crate::npc::NpcPlugin);
 
-        setup_gauntlet(
-            &mut app,
-            crate::bridge::types::CharacterArchetype::default(),
-        );
+        setup_gauntlet(&mut app);
 
         let wm = app.world().resource::<WalkabilityMap>();
         // Hub center at (50, 58) must be walkable
@@ -739,10 +728,7 @@ mod tests {
         app.add_plugins(crate::knowledge::KnowledgePlugin);
         app.add_plugins(crate::npc::NpcPlugin);
 
-        setup_gauntlet(
-            &mut app,
-            crate::bridge::types::CharacterArchetype::default(),
-        );
+        setup_gauntlet(&mut app);
 
         let wm = app.world().resource::<WalkabilityMap>();
         // North wall segment at absolute (90, 54) should be blocked
@@ -758,10 +744,7 @@ mod tests {
         app.add_plugins(crate::knowledge::KnowledgePlugin);
         app.add_plugins(crate::npc::NpcPlugin);
 
-        setup_gauntlet(
-            &mut app,
-            crate::bridge::types::CharacterArchetype::default(),
-        );
+        setup_gauntlet(&mut app);
 
         let wm = app.world().resource::<WalkabilityMap>();
         // corridor-E center should be walkable
@@ -775,10 +758,7 @@ mod tests {
         app.add_plugins(crate::knowledge::KnowledgePlugin);
         app.add_plugins(crate::npc::NpcPlugin);
 
-        setup_gauntlet(
-            &mut app,
-            crate::bridge::types::CharacterArchetype::default(),
-        );
+        setup_gauntlet(&mut app);
 
         let registry = app.world().resource::<EntityRegistry>();