feat(simulation): Sprint 18 — 9 server systems

Background tier state machines (#95), NPC vision (#115), player-
awareness behavior (#244), skill system & combat flag (#91), social
propagation (#249), examine mechanic (#242), character pressure
framework (#248), save state data model (#256), tell state wiring
(#337). Protocol version bumped 13→14 for examine_result and
character_pressure snapshot fields.

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

server/src/bridge/text_renderer.rs

@@ -306,6 +306,8 @@ mod tests {
             conversation_events: vec![],
             conversation_ended: vec![],
             follow_state: None,
+            examine_result: None,
+            character_pressure: None,
             sound_events: vec![],
             rng_seed: None,
         }
@@ -436,6 +438,8 @@ mod tests {
             conversation_events: vec![],
             conversation_ended: vec![],
             follow_state: None,
+            examine_result: None,
+            character_pressure: None,
             sound_events: vec![],
             rng_seed: None,
         };

server/src/bridge/types.rs

@@ -15,7 +15,7 @@ pub use crate::simulation::time::{DayPhase, TickRate};
 /// negotiation is unnecessary. Client should reject snapshots with version !=
 /// PROTOCOL_VERSION. New fields use #[serde(default)] only during the migration
 /// period, then the default is removed once both sides are updated.
-pub const PROTOCOL_VERSION: u8 = 13;
+pub const PROTOCOL_VERSION: u8 = 14;
 
 /// The ONLY data structure crossing the client-server boundary (D-020)
 /// Contains all information visible to the observer at a given tick.
@@ -34,6 +34,7 @@ pub const PROTOCOL_VERSION: u8 = 13;
 /// v12 adds: conversation_events, conversation_ended (#247, D-078 NPC-to-NPC conversations).
 /// v13 adds: tell_state on VisibleEntity (#90, D-024 tell system — for future client use),
 ///           follow_state (#241, follow mechanic HUD state).
+/// v14 adds: examine_result (#242, character-filtered examine observation text).
 /// Future fields: ambient sound events, HUD state (D-020 expansion).
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct ObserverSnapshot {
@@ -105,6 +106,15 @@ pub struct ObserverSnapshot {
     /// Client shows follow indicator with distance, LOS, and tension.
     #[serde(default)]
     pub follow_state: Option<crate::simulation::follow::FollowStateWire>,
+    /// Examine result from Examine verb interaction (#242).
+    /// Present when the player examined an NPC or object this tick.
+    /// Client displays character-filtered detail text in an observation panel.
+    #[serde(default)]
+    pub examine_result: Option<crate::simulation::examine::ExamineResultEvent>,
+    /// Character pressure state for client HUD widget (#248).
+    /// Present when pressure is non-zero. Client renders tension indicator.
+    #[serde(default)]
+    pub character_pressure: Option<crate::simulation::pressure::CharacterPressureWire>,
     /// RNG seed active at this tick for deterministic replay (#527).
     /// The WRONG button writes this to seed.txt so replays reproduce observed bugs.
     /// None when the RNG resource is unavailable (should not occur in practice).