fix(client): clear the test debt — 2 production bugs, suite fully green (T-973 et al.)

Production fixes surfaced by honest test triage:
- hud_groups.gd: _set_group_z crashed on freed HUD nodes — the typed loop
  variable errors before the is_instance_valid guard runs; prune first
- fog_state.gd: _resize cleared _prev_visible (world-space keys survive
  resizes), so pre-resize tiles never decayed VISIBLE→EXPLORED (D-059)

Test debt (T-928/929/934/935/936/937/938/939, T-864, T-973): lambda
local-capture bugs rewritten with array captures (now assert exact
emission counts), e2e suites updated to the current handshake +
StartupMessage protocol and stream-aware reads against the live binary,
fog perf test measures steady state, chime test pins the shipped 800ms
catalog asset (D-067 amended separately), monologue gdUnit4 API typo,
battery-warning tests follow the MetaScreen on_open lifecycle. 3 sprint2
proof tests revived (corner_reveal had passed from the wrong tile — NPC3
blocks (18,14); route corrected). Soft-skips converted to real do_skip
reporting. T-1068: 7 orphan .gd.uid deleted, _format_pop/_format_radius
deduped into atlas_format.gd (preload, no class_name — headless cache).

Suite: 1264 cases/20 failures → 1268/0, independently re-verified
(2536/2536, exit 0).

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

client/ui/bug_report_dialog.gd.uid

@@ -1 +0,0 @@
-uid://dwdssbevd8gqq

client/ui/character_select.gd.uid

@@ -1 +0,0 @@
-uid://char_select_sr

client/ui/debug_console.gd.uid

@@ -1 +0,0 @@
-uid://c8pvt3xr7kmd2

client/ui/implant/apps/atlas/atlas_format.gd

@@ -0,0 +1,28 @@
+extends RefCounted
+## Shared formatting helpers for Atlas screens (T-1068).
+## Deduplicated from planet_screen.gd / system_screen.gd.
+## Consumed via explicit preload (no class_name — avoids the global class
+## cache dependency that breaks headless test runs on fresh checkouts):
+##   const AtlasFormat := preload("res://ui/implant/apps/atlas/atlas_format.gd")
+
+
+## Thousands-separated integer, e.g. 1234567 -> "1,234,567".
+static func format_pop(pop: int) -> String:
+	if pop <= 0:
+		return "0"
+	var s: String = str(pop)
+	var result: String = ""
+	var count: int = 0
+	for i: int in range(s.length() - 1, -1, -1):
+		if count > 0 and count % 3 == 0:
+			result = "," + result
+		result = s[i] + result
+		count += 1
+	return result
+
+
+## Body radius in km — thousands-separated above 10,000 km, plain below.
+static func format_radius(km: float) -> String:
+	if km >= 10000.0:
+		return "%s km" % format_pop(int(km))
+	return "%.0f km" % km

client/ui/implant/apps/atlas/screens/planet_screen.gd

@@ -3,6 +3,8 @@ extends Control
 ## Body entry screen for AtlasApp (#844, D-191).
 ## Shows body detail panel. Heightmap viewer is in RegionalScreen.
 
+const AtlasFormat := preload("res://ui/implant/apps/atlas/atlas_format.gd")
+
 const PANEL_WIDTH: float = 320.0
 const PANEL_MARGIN: float = 16.0
 const COLOR_BG: Color = Color("#0d1117")
@@ -85,7 +87,7 @@ func _rebuild_body_panel() -> void:
 
 	if inhabited:
 		_body_panel.add_component(ImplantSeparator.new())
-		_body_panel.add_component(ImplantDataRow.new("population  " + _format_pop(pop)))
+		_body_panel.add_component(ImplantDataRow.new("population  " + AtlasFormat.format_pop(pop)))
 
 	_body_panel.add_component(ImplantSeparator.new())
 
@@ -95,22 +97,3 @@ func _rebuild_body_panel() -> void:
 		_body_panel.add_component(ImplantTextBlock.new("atlas data pending  (#839)"))
 
 	_body_panel.add_component(ImplantTextBlock.new("esc    back to orbital view"))
-
-
-# =============================================================================
-# Helpers
-# =============================================================================
-
-
-func _format_pop(pop: int) -> String:
-	if pop <= 0:
-		return "0"
-	var s: String = str(pop)
-	var result: String = ""
-	var count: int = 0
-	for i: int in range(s.length() - 1, -1, -1):
-		if count > 0 and count % 3 == 0:
-			result = "," + result
-		result = s[i] + result
-		count += 1
-	return result

client/ui/implant/apps/atlas/screens/system_screen.gd

@@ -6,6 +6,8 @@ extends Control
 
 signal body_selected(body: Dictionary)
 
+const AtlasFormat := preload("res://ui/implant/apps/atlas/atlas_format.gd")
+
 const STAR_RADIUS: float = 140.0
 const STAR_X_OFFSET: float = 0.0
 const BODY_LEFT_MARGIN: float = 300.0
@@ -667,11 +669,15 @@ func _rebuild_body_panel() -> void:
 	_body_panel.add_component(ImplantDataRow.new(type_line))
 	_body_panel.add_component(ImplantDataRow.new("atmosphere  " + atmo))
 	if radius_km > 0:
-		_body_panel.add_component(ImplantDataRow.new("radius  " + _format_radius(radius_km)))
+		_body_panel.add_component(
+			ImplantDataRow.new("radius  " + AtlasFormat.format_radius(radius_km))
+		)
 
 	if inhabited:
 		_body_panel.add_component(ImplantSeparator.new())
-		_body_panel.add_component(ImplantDataRow.new("population  " + _format_pop(pop)))
+		_body_panel.add_component(
+			ImplantDataRow.new("population  " + AtlasFormat.format_pop(pop))
+		)
 
 	_body_panel.add_component(ImplantSeparator.new())
 	var has_heightmap: bool = b.get("terrain_reference") != null
@@ -680,23 +686,3 @@ func _rebuild_body_panel() -> void:
 	_body_panel.add_component(ImplantTextBlock.new("esc  close"))
 
 	_dirty = true
-
-
-static func _format_pop(pop: int) -> String:
-	if pop <= 0:
-		return "0"
-	var s: String = str(pop)
-	var result: String = ""
-	var count: int = 0
-	for i: int in range(s.length() - 1, -1, -1):
-		if count > 0 and count % 3 == 0:
-			result = "," + result
-		result = s[i] + result
-		count += 1
-	return result
-
-
-static func _format_radius(km: float) -> String:
-	if km >= 10000.0:
-		return "%s km" % _format_pop(int(km))
-	return "%.0f km" % km

client/ui/loading_screen.gd.uid

@@ -1 +0,0 @@
-uid://c6wtn7qk3mv2x

client/ui/main_menu.gd.uid

@@ -1 +0,0 @@
-uid://8jhxbtbelw0y

client/ui/settings_dialog.gd.uid

@@ -1 +0,0 @@
-uid://cpjq8yfsnpr5m