fix(clade): correct CLADE uuid (deterministic v5, was template residue) (#50)

The `CLADE.a2ml` uuid was the **copied template's** uuid — `a5ea1382-…`
= the deterministic v5 for `rsr-template-repo` — so it collided with the
template's identity in `gv-clade-index`.

Regenerated per the registry's documented method (`uuidgen --sha1
--namespace @url --name github.com/hyperpolymath/{name}`):

```
github.com/hyperpolymath/a2ml-validate-action -> 4aacd8a6-935d-5c3f-9679-0635f5deafec
```

Verified the method reproduces `standards`' registered uuid
(`d9e987dc-…`) exactly, so this is the canonical value.

Note: `[lineage].parent` still says "RSR template — scaffold for new
repos" — left for registry reconciliation (not a deterministic
computation).

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: hyperpolymath

.machine_readable/CLADE.a2ml

@@ -3,7 +3,7 @@
 # See: https://github.com/hyperpolymath/gv-clade-index
 
 [identity]
-uuid = "a5ea1382-a34c-5334-8a46-a2ebe904c810"
+uuid = "4aacd8a6-935d-5c3f-9679-0635f5deafec"
 primary-forge = "github"
 primary-owner = "hyperpolymath"
 canonical-name = "a2ml-validate-action"