Restore pruned releases and verify CI publishing with v0.2.12

- Host root filesystem was expanded from 7.8G to 16G (~7.8G free), so the disk
  blocker is gone.
- Re-published v0.2.0 (4 artifacts) and v0.2.9 (5 artifacts) from the local build/
  outputs; both releases verify.
- Root SSH from the workstation is not available (publickey denied, password auth
  closes the banner); the host is administered via the zwitschi login.
- Version 0.2.12 exists to verify the tag pipeline end to end: the workflow should
  create the release via the checkout-credential fallback and upload all five
  artifacts.

project.godot

@@ -8,7 +8,7 @@ config_version=5
 
 config/name="Step Line"
 config/description="Workplace security simulation about observation, access verification, and proportionate escalation."
-config/version="0.2.11"
+config/version="0.2.12"
 run/main_scene="res://scenes/main.tscn"
 config/features=PackedStringArray("4.3", "GL Compatibility")