chore: rename to @soulcraftlabs/brainy for Open Brainy on The Source

Prepares the repo for its new home at soulcraftlabs/open-brainy ahead
of the Forgejo transfer: package name, publish registry, release
script, and every install/import reference across docs, src, tests,
examples, and integrations now point at @soulcraftlabs/brainy on
The Source. The npmjs storefront leg and byte-identity pair
verification are stripped from the release script — The Source is
now the only publish target. README gains an Open Brainy explainer
and a registry note for consumers.

@soulcraft/brainy 10.4.2 was the last release under the old name.

src/utils/brainyTypes.ts

@@ -6,7 +6,7 @@
  *
  * @example
  * ```typescript
- * import { BrainyTypes } from '@soulcraft/brainy'
+ * import { BrainyTypes } from '@soulcraftlabs/brainy'
  *
  * // Get all available types
  * const nounTypes = BrainyTypes.nouns  // ['Person', 'Organization', ...]

src/utils/version.ts

@@ -1,6 +1,6 @@
 /**
  * @module utils/version
- * @description Resolves the running `@soulcraft/brainy` package version. Brainy 8.0
+ * @description Resolves the running `@soulcraftlabs/brainy` package version. Brainy 8.0
  * targets Node-like runtimes only (Node.js, Bun, Deno — all expose `node:fs`), so the
  * version is read **synchronously** from `package.json` on first call and cached.
  *