Fix release publishing and add a CI token fallback

Tag builds since v0.2.2 built all artifacts but never published a release:
- tools/publish_release.sh only assembled AUTH in the GITEA_TOKEN branch; the
  ~/.git-credentials branch set CRED and then used an unbound ${AUTH[@]} under
  `set -u`, so every API call failed and the job ended "could not create or find
  release". It now sets AUTH=(-u "$CRED").
- The repo has no GITEA_TOKEN secret and the runner has no git credentials, so the
  workflow now falls back to the built-in workflow token:
  GITEA_TOKEN: ${{ secrets.GITEA_TOKEN || github.token }}.

v0.2.9 was then built and published locally with all five artifacts (portable
Linux/Windows/macOS, NSIS installer, AppImage) and the release page verified via
the API. v0.2.4-v0.2.8 remain unpublished; they are superseded by the latest.

Docs
- docs/RELEASING.md records the incident and the local-publish fallback.
- TODO gains a release-pipeline follow-up (verify CI on the next tag).
- MEMORY notes the root cause, the missing secret, and which releases exist.
- Version 0.2.10.

src/game/npc_avatar.gd

@@ -89,7 +89,7 @@ var _rig: Node3D = null
 var _head: Node3D = null
 var _bob_phase := 0.0
 var _guard_ref: Node3D = null
-var _ring: MeshInstance3D = null
+var _focus_circle: MeshInstance3D = null
 var _name_tag: Label3D = null
 ## Theater props and limbs for the idle poses (ADR-0010 rig).
 var _photo_prop: MeshInstance3D = null
@@ -136,26 +136,29 @@ func _build_body(npc_type: int) -> void:
 	_rig.add_child(_head)
 	_add_box_prop(_rig, Vector3(0.16, 0.08, 0.28), Vector3(-0.16, 0.05, 0.02), Color(0.12, 0.12, 0.14))
 	_add_box_prop(_rig, Vector3(0.16, 0.08, 0.28), Vector3(0.16, 0.05, 0.02), Color(0.12, 0.12, 0.14))
-	_build_focus_ring()
+	_build_focus_circle()
 	_add_props(npc_type)
 
-func _build_focus_ring() -> void:
-	_ring = MeshInstance3D.new()
-	_ring.name = "FocusRing"
-	var torus := TorusMesh.new()
-	torus.inner_radius = 0.26
-	torus.outer_radius = 0.34
-	torus.rings = 12
-	torus.ring_segments = 16
-	_ring.mesh = torus
+func _build_focus_circle() -> void:
+	_focus_circle = MeshInstance3D.new()
+	_focus_circle.name = "FocusCircle"
+	# Blue, semi-transparent disc floating in front of the face (ADR-0008).
+	# Billboarded so it always reads as a circle on screen.
+	var disc := CylinderMesh.new()
+	disc.top_radius = 0.15
+	disc.bottom_radius = 0.15
+	disc.height = 0.001
+	disc.radial_segments = 24
+	_focus_circle.mesh = disc
 	var mat := StandardMaterial3D.new()
 	mat.shading_mode = BaseMaterial3D.SHADING_MODE_UNSHADED
-	mat.albedo_color = Color(0.95, 0.82, 0.28, 0.9)
+	mat.albedo_color = Color(0.25, 0.55, 1.0, 0.45)
 	mat.transparency = BaseMaterial3D.TRANSPARENCY_ALPHA
-	_ring.material_override = mat
-	_ring.position = Vector3(0, 0.28, 0)
-	_ring.visible = false
-	_head.add_child(_ring)
+	mat.billboard_mode = BaseMaterial3D.BILLBOARD_ENABLED
+	_focus_circle.material_override = mat
+	_focus_circle.position = Vector3(0, 0, 0.30)
+	_focus_circle.visible = false
+	_head.add_child(_focus_circle)
 	_name_tag = Label3D.new()
 	_name_tag.name = "NameTag"
 	_name_tag.text = npc.profile.display_name if npc and npc.profile else ""
@@ -168,12 +171,12 @@ func _build_focus_ring() -> void:
 	_head.add_child(_name_tag)
 
 func set_focus_visual(focused: bool, menu_open: bool = false) -> void:
-	if _ring:
-		_ring.visible = focused
-		var mat := _ring.material_override as StandardMaterial3D
+	if _focus_circle:
+		_focus_circle.visible = focused
+		var mat := _focus_circle.material_override as StandardMaterial3D
 		if mat:
-			mat.albedo_color = Color(1.0, 0.92, 0.35, 1.0) if menu_open else Color(0.95, 0.82, 0.28, 0.85)
-		_ring.scale = Vector3.ONE * (1.15 if menu_open else 1.0)
+			mat.albedo_color = Color(0.35, 0.65, 1.0, 0.7) if menu_open else Color(0.25, 0.55, 1.0, 0.45)
+		_focus_circle.scale = Vector3.ONE * (1.15 if menu_open else 1.0)
 	if _name_tag:
 		_name_tag.visible = focused
 
@@ -394,10 +397,7 @@ func _animate(delta: float) -> void:
 		_bob_phase = 0.0
 		_rig.position.y = lerpf(_rig.position.y, 0.0, 0.2)
 		_rig.rotation.x = lerpf(_rig.rotation.x, 0.0, 0.2)
-	if _ring and _ring.visible:
-		var cam := get_viewport().get_camera_3d() if get_viewport() else null
-		if cam:
-			_ring.look_at(cam.global_position, Vector3.UP)
+	# The focus circle billboards via its material; no per-frame look_at needed.
 	# Attention cue: head turns toward the guard when awareness was raised.
 	if _head != null and npc.guard_noticed:
 		if _guard_ref == null or not is_instance_valid(_guard_ref):