v2026.281.1350

fix(import)!: advance the cachyos import to the post-M4 tag (#856)

The CachyOS distro import still pointed at v2026.274.2120, a PRE-M4 tag, while this repo's
own box/cachyos gitlink is already post-M4 (673b1b6). That split is what makes the retired
OpenClaw content keep coming back in every consumer:

  distro-cachyos@v2026.274.2120  ->  candy/cachyos-app-skills/charly.yml carries the
                                     openclaw-desktop/-full/-full-layer/-full-ml-layer skill entities
  distro-cachyos@v2026.281.1001  ->  zero such entities (M4 deleted them)

charly's import block is a consumer pin like any other, so M4's cutover owed it an advance
and did not get one. Until it lands, every project that resolves this repo's namespace -
including the marketplace corpus, through plugin-herdr's nested charly checkout - resolves the
pre-M4 tree and re-projects the four retired skills.

- charly.yml: cachyos '@github.com/opencharly/distro-cachyos:v2026.274.2120' ->
  '@github.com/opencharly/distro-cachyos:v2026.281.1001'.
- Nothing else changes: no Go, no schema, no box, no candy.

Measured, claim-keyed: under the old tag the entity grep finds 1 file
(candy/cachyos-app-skills/charly.yml); under the new tag and in this repo's post-M4
box/cachyos checkout it finds 0.

charly box validate: OK — checked 610 candies, 122 boxes, 45 deploys, 7 distros, 7 builders; 0 warnings, 0 errors.

Refs opencharly/opencharly#431

Agent: openclaw-family
Assisted-by: DSH DeepSeek V4.1 Flash (fully tested and validated)