v0.3.0: rendering pass, generated props, selection model and Web build

Rendering and presentation
- Shared surface-material module (src/game/materials.gd) with per-surface
  roughness/metallic/uv profiles; ACES tonemapping, glow, fog and phase-driven sky
  energy. WorldBuilder rebuilt on those profiles with facade windows that light up,
  door trim/handles, curb, lane dashes, bollards, bench, bin and planter foliage.
- NPC silhouettes: per-role clothing palettes, caps/hoods/backpacks/sunglasses,
  hands and shoes, arm/leg walk swing.
- Six generated low-poly GLB props (bollards, bench, bin, planter, newspaper box,
  hydrant) built by tools/model_pipeline.py, loaded by WorldBuilder with a
  procedural fallback; ADR-0012.

Selection and movement
- Focus ranking by view angle then distance (NpcFocus.rank_indices); Tab and the
  mouse wheel cycle nearby people initially, right click clears focus with a
  re-acquire grace, HUD shows the candidate count, Shift walks at half speed.
  ADR-0011. Windowed smoke extended to cover wheel cycling and clearing.

QA tooling
- screen_designs.py catalogue grown to 19 screens (8 scene, 11 UI) plus a `list`
  subcommand; draft generation keeps existing AI references unless --force.

Web export
- New Web preset using the non-threaded Godot template (static hosting, no
  COOP/COEP). tools/build_releases.sh exports build/web and packages
  build/step-line-web-<ver>.zip; publish_release.sh uploads it with the desktop
  artifacts. test_web_export.gd covers the preset and release wiring.

Verification
- Headless suite 177 -> 181, Python tooling 53 tests, all eight smokes pass
  (including the windowed focus/wheel smoke). Web bundle serves index.html,
  index.wasm (35 MB) and index.pck (30 MB) with HTTP 200 from a static server.
- Version 0.3.0; README, PLAN, RELEASING, TODO/DONE and MEMORY updated.

src/test/tests/test_target_cycle.gd

@@ -0,0 +1,88 @@
+extends RefCounted
+## Headless tests for focus ranking, aim-free cycling helpers, and the NPC
+## outfit/gait helpers added in the control re-evaluation (ADR-0011).
+
+const NpcFocus := preload("res://src/game/npc_focus.gd")
+const NpcAvatar := preload("res://src/game/npc_avatar.gd")
+const Rules := preload("res://src/core/rules.gd")
+
+func test_rank_orders_by_angle_then_distance() -> bool:
+	var origin := Vector3.ZERO
+	var forward := Vector3(0, 0, -1)
+	# Index 2 is dead ahead and near, index 0 dead ahead but far, index 1 off to
+	# the side. Ranking must be angle first, then distance.
+	var heads := [Vector3(0, 0, -9), Vector3(0.9, 0, -6), Vector3(0, 0, -5)]
+	var ranked: Array = NpcFocus.rank_indices(origin, forward, heads)
+	var a := TestUtils.check_eq(ranked, [2, 0, 1], "angle first, then distance")
+	var b := TestUtils.check_eq(NpcFocus.pick_index(origin, forward, heads), 2,
+		"pick_index returns the best-ranked head")
+	return a and b
+
+func test_rank_excludes_out_of_cone_and_range() -> bool:
+	var origin := Vector3.ZERO
+	var forward := Vector3(0, 0, -1)
+	var heads := [
+		Vector3(0, 0, 40),      # too far
+		Vector3(8, 0, -5),      # too wide
+		Vector3(0, 0, 6),       # behind the camera
+		Vector3(0.2, 0, -7),    # valid
+	]
+	var ranked: Array = NpcFocus.rank_indices(origin, forward, heads)
+	return TestUtils.check_eq(ranked, [3], "only the in-cone head is ranked")
+
+func test_rank_is_empty_when_nobody_is_in_the_cone() -> bool:
+	var ranked: Array = NpcFocus.rank_indices(
+		Vector3.ZERO, Vector3(0, 0, -1), [Vector3(0, 0, 30)])
+	var picked := NpcFocus.pick_index(Vector3.ZERO, Vector3(0, 0, -1), [Vector3(0, 0, 30)])
+	return TestUtils.check(ranked.is_empty() and picked == -1, "empty ranking and -1 pick")
+
+func test_limb_swing_is_opposite_per_side() -> bool:
+	var left := NpcAvatar.limb_swing(PI / 2.0, 0, 1.0)
+	var right := NpcAvatar.limb_swing(PI / 2.0, 1, 1.0)
+	var still := NpcAvatar.limb_swing(0.0, 0, 1.0)
+	var a := TestUtils.check(absf(left - 1.0) < 0.001, "left limb swings to +amplitude")
+	var b := TestUtils.check(absf(right + 1.0) < 0.001, "right limb swings the other way")
+	var c := TestUtils.check(absf(still) < 0.001, "phase 0 is the neutral pose")
+	return a and b and c
+
+func test_outfit_is_deterministic_per_seed() -> bool:
+	var first: Dictionary = NpcAvatar.outfit_for(Rules.NpcType.TOURIST, 991)
+	var second: Dictionary = NpcAvatar.outfit_for(Rules.NpcType.TOURIST, 991)
+	var a := TestUtils.check(first["shirt"] == second["shirt"], "same seed, same shirt")
+	var b := TestUtils.check(first["pants"] == second["pants"], "same seed, same trousers")
+	var c := TestUtils.check(first["accessory"] == second["accessory"], "same seed, same accessory")
+	return a and b and c
+
+func test_outfit_varies_across_seeds() -> bool:
+	var shirts := {}
+	var pants := {}
+	for seed_value in [1, 2, 3, 4, 5, 6, 7, 8]:
+		var outfit: Dictionary = NpcAvatar.outfit_for(Rules.NpcType.TOURIST, seed_value * 977)
+		shirts[outfit["shirt"]] = true
+		pants[outfit["pants"]] = true
+	var a := TestUtils.check(shirts.size() > 1, "shirt colour varies between people")
+	var b := TestUtils.check(pants.size() > 1, "trouser colour varies between people")
+	return a and b
+
+func test_accessories_follow_the_role() -> bool:
+	var a := TestUtils.check_eq(
+		NpcAvatar.outfit_for(Rules.NpcType.RESPONDER, 5)["accessory"], "cap",
+		"responders wear a cap")
+	var b := TestUtils.check_eq(
+		NpcAvatar.outfit_for(Rules.NpcType.TRESPASSER, 5)["accessory"], "hood",
+		"trespassers wear a hood")
+	var c := TestUtils.check_eq(
+		NpcAvatar.outfit_for(Rules.NpcType.AUTHORIZED_GUEST, 5)["accessory"], "lanyard",
+		"guests wear a lanyard")
+	var d := TestUtils.check_eq(
+		NpcAvatar.outfit_for(Rules.NpcType.INTOXICATED, 5)["accessory"], "none",
+		"roles without an accessory say none")
+	return a and b and c and d
+
+func test_height_scale_stays_human() -> bool:
+	var ok := true
+	for seed_value in range(1, 40):
+		var scale_y: float = float(NpcAvatar.outfit_for(Rules.NpcType.TOURIST, seed_value * 131)["height_scale"])
+		if scale_y < 0.9 or scale_y > 1.1:
+			ok = false
+	return TestUtils.check(ok, "avatar height scale stays between 0.9 and 1.1")