v0.22.0:0 - configurable vllm port; gitea-release tooling; coexistence roadmap

- Configure Sparks gains a vLLM port field (blank => 8888, our launch-cluster.sh
  default); VLLM_PORT plumbed configureSparks -> sparkConfig.yaml -> main.ts env
  -> config.py. So an adopter whose vLLM listens elsewhere (e.g. 8000) can fix
  the "vLLM unreachable" health check without rebuilding the package.
- Harden numeric env parsing (config._env_int): a blank or malformed port now
  falls back to its default instead of crashing daemon startup (closes a P3
  tech-debt item; the Configure panel passes unset optional fields as "").
- Add scripts/gitea-release.sh + `make release` to publish the built s9pk to
  Gitea Releases, so the OpenClaw adopter pulls updates with a read-only token
  instead of being hand-sent the package.
- Capture the OpenClaw/Johnny-5 coexistence epic and the "control plane, not a
  job runner" stance in ROADMAP.md and Current state.

package/startos/fileModels/sparkConfig.yaml.ts

@@ -7,6 +7,8 @@ export const sparkConfigSchema = z.object({
   spark1_user: z.string().catch(''),
   spark2_host: z.string().catch(''),
   spark2_user: z.string().catch(''),
+  // Optional vLLM port override (Spark 1). Blank => 8888 (launch-cluster.sh default).
+  vllm_port: z.string().catch(''),
   // Optional per-service overrides. Blank => use spark2_host / spark2_user.
   parakeet_host: z.string().catch(''),
   parakeet_user: z.string().catch(''),