Detail the NPC avatars and finish the realism follow-ups

Blender library
- Rebuild the face: sclera, iris and upper lid per eye, brow ridge, cheekbones,
  nose bridge and tip, ears with lobes, split upper/lower lips.
- Give each hand four fingers plus a thumb and end every sleeve in a cuff ring.
- Raise CHAR_MAX_VERTS 4000 -> 5000 (16 avatars still cost ~6.9 ms of a 50 ms
  frame), decimate the body to 26 %; characters are now 3,974-5,026 tris and
  3,744-4,807 verts. Rebuild all 8 variants and re-bake their AO maps.

Capture tooling
- Add a `portrait` stage to capture_realism.gd: freeze one NPC, park the crowd
  out of frame, stand the subject on open sidewalk, turn it into the camera and
  put the guard on the sunlit side. New --portrait-type=N picks the role.
- Add the npc_portrait_day concept and map the shot to it, so avatar detail is
  scored against a portrait instead of a wide street frame.

Flashlight
- Drop the fake additive beam (Materials.light_beam + the cone mesh): on GL
  Compatibility a first-person camera inside the cone renders it as a filled
  disc with a bright far ring. Keep the tight spot (14 deg, 20 m, energy 4.2)
  and its headless test; the visible shaft is now planned behind a Forward+
  preset.

Docs and task tracking
- Move the finished realism follow-ups (ground exposure, flashlight, NPC detail,
  judge re-check) to DONE.md and expand TODO.md with step-by-step plans for NPC
  gear fit, venue geometry plus the committed gallery, and the Forward+ preset.
- Record the decisions, gotchas and portrait recipe in MEMORY.md; update the
  Blender contract, the concept README and the capture section of README.md.
- Refresh the gallery captures affected by the avatar rebuild.

Checks: headless 228/228, Python 86/86, blender_assets audit exit 0,
scene_concepts audit all GOOD, screen_designs compare 11 good / 0 bad,
smoke_npc_budget OK, boot clean (only the known headless mesh warning).

src/test/tests/test_door_and_flashlight.gd

@@ -28,6 +28,24 @@ func test_unlocked_door_admits_force() -> bool:
 	var b := TestUtils.check_eq(result["outcome"], "entered", "entered outcome")
 	return a and b
 
+func test_flashlight_aims_a_tight_forward_spot() -> bool:
+	## The lamp sits on the guard's head and aims straight down the view axis with
+	## a narrow cone: a wide cone washed the whole entrance instead of lighting the
+	## door being checked (realism pass, 2026-11-01).
+	var root := Node3D.new()
+	var gm: Node = load("res://src/game/game_manager.gd").new()
+	root.add_child(gm)
+	var guard: Node3D = gm.call("_build_guard")
+	var lamp: SpotLight3D = guard.get_node_or_null("Head/Flashlight") as SpotLight3D
+	var a := TestUtils.check(lamp != null, "flashlight lives on the guard's head")
+	var b := TestUtils.check(lamp != null and lamp.rotation_degrees.is_equal_approx(Vector3.ZERO),
+		"flashlight aims straight ahead")
+	var c := TestUtils.check(lamp != null and lamp.spot_angle <= 20.0,
+		"flashlight cone is narrow enough to read as a torch")
+	var d := TestUtils.check(lamp != null and not lamp.visible, "flashlight starts off")
+	root.free()
+	return a and b and c and d
+
 func test_flashlight_widens_perception() -> bool:
 	## Without the flashlight, an NPC at AWARE_RADIUS + 3 m is unaware.
 	## With the flashlight bonus (4 m), the same distance registers as aware.