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 v0.2.4-v0.2.8 remain unpublished; they are superseded by the latest.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.

PLAN.md

@@ -458,7 +458,7 @@ Desktop is the first target: Windows, Linux, and macOS. Web export is a later op
 
 The prototype already walks and looks in first person, but the control scheme fights itself and targeting is a hairline. This pass replaces that with three things that belong together: solid locomotion, a visible focus on a person, and a round action menu for what to do with them.
 
-Decisions: [ADR-0007](docs/adr/0007-locomotion-and-input-layers.md) locomotion and input layers, [ADR-0008](docs/adr/0008-cone-focus-and-head-ring.md) cone focus and head ring, [ADR-0009](docs/adr/0009-radial-action-menu.md) radial action menu, [ADR-0010](docs/adr/0010-procedural-npc-presentation.md) procedural NPC presentation.
+Decisions: [ADR-0007](docs/adr/0007-locomotion-and-input-layers.md) locomotion and input layers, [ADR-0008](docs/adr/0008-cone-focus-and-head-ring.md) cone focus and focus circle, [ADR-0009](docs/adr/0009-radial-action-menu.md) radial action menu, [ADR-0010](docs/adr/0010-procedural-npc-presentation.md) procedural NPC presentation.
 
 ### What is wrong today
 
@@ -496,17 +496,17 @@ Replace the hairline ray as the primary picker.
 - `Tab` still cycles people inside 12 m as the aim-free path. Cycling sets the same focused person the cone would.
 - Clearing: look away until the head leaves the circle for a few frames (small grace so a bob does not drop them), or they walk out of range.
 
-### Head ring
+### Focus circle
 
-When a person is in focus, draw a thin ring around their head.
+When a person is in focus, draw a blue, semi-transparent circle in front of their face.
 
-- Attach to the avatar `Head` node, sitting just above the skull, billboarded to the camera so it stays a circle on screen.
+- Attach to the avatar `Head` node, just in front of the face, billboarded to the camera so it stays a circle on screen.
 - Slow spin is fine; no ping-pong scale spam.
-- Idle focus: pale gold, modest size. Radial open on that person: brighter, slightly larger.
-- Optional small name under the ring (`display_name` only, not the archetype cheat `Violent Threat` in the world). The existing HUD target line can keep the archetype for the prototype.
-- One ring at a time. Everyone else has none.
+- Idle focus: blue, semi-transparent, modest size. Radial open on that person: brighter, slightly larger.
+- Optional small name under the circle (`display_name` only, not the archetype cheat `Violent Threat` in the world). The existing HUD target line can keep the archetype for the prototype.
+- One circle at a time. Everyone else has none.
 
-Implementation sketch: `MeshInstance3D` torus or a thin unshaded ring mesh on the avatar, toggled from `GuardController` / `GameManager` when focus changes. Screen-space fallback (unproject head, draw a `Control` circle) is acceptable if the 3D torus z-fights on hats.
+Implementation sketch: a thin unshaded `MeshInstance3D` circle (flat disc) in front of the face on the avatar, toggled from `GuardController` / `GameManager` when focus changes. Screen-space fallback (unproject head, draw a `Control` circle) is acceptable if the 3D circle z-fights on hats.
 
 ### Round action HUD
 
@@ -545,7 +545,7 @@ A doughnut / pie menu centered on the screen, opened on the focused person.
 **Cancel**
 
 - `Esc` or right mouse button: hide the menu, no action, no recorder event, recapture mouse.
-- Focus and the head ring stay as they were.
+- Focus and the focus circle stay as they were.
 
 Number keys `1`–`6` may remain as shortcuts that skip the wheel so a smoke-test script still works. They must not fire while the wheel is open (the wheel owns `A` / `D` / `Space`). Document both in the README.