feat(simulation): auto-pause sim on implant-fullscreen — inspection substrate (T-970)

D-226 layer 1. World-advancing phases gated on pause: Movement/Storyteller/Knowledge/TickAdvance set-gated via sim_not_paused; Simulation + Economy gated per-system at their registration sites — collect_sound_events and serve_econ_state_query stay unconditioned (transient-buffer clear + paused-allowed query; set-gating Simulation leaked a stale tick-7 footstep into frozen snapshots — caught by golden_suite, fixed without touching the fixture; regression test encodes the bug shape). New PlayerAction::AutoPause/AutoResume + AutoPauseState resource implement Option A reconciliation: auto-resume only fires if auto-pause caused the pause; manual pause and Half rate survive implant open/close. PauseParams SystemParam bundle keeps process_player_input under the 16-param ceiling (BookmarkInputParams precedent). Client: HudGroups.gameplay_occluded now sends AutoPause/AutoResume via send_named_action; 5 gdUnit tests + 7 Rust tests.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

server/src/npc/mod.rs

@@ -24,7 +24,7 @@ use std::collections::BTreeMap;
 
 use crate::knowledge::types::{FactId, KnowledgeConfidence, StableId};
 use crate::simulation::movement::TilePosition;
-use crate::simulation::time::DayPhase;
+use crate::simulation::time::{sim_not_paused, DayPhase};
 
 /// NPC plugin: initializes NPC-related resources and systems.
 pub struct NpcPlugin;
@@ -80,6 +80,11 @@ impl Plugin for NpcPlugin {
                     disclosure::process_unprompted_disclosure
                         .after(disclosure::derive_disclosure_candidates),
                 )
+                    // T-970: TickPhase::Simulation is not set-gated (see
+                    // social_plugin.rs's collect_sound_events exemption) —
+                    // every system here is genuine NPC-behavior world
+                    // advancement, so this whole tuple gates safely.
+                    .run_if(sim_not_paused)
                     .in_set(TickPhase::Simulation),
             )
             // Storyteller: tell state derivation (reads mood + routine deviation)