fix(release): remove --tag alpha flag from release:alpha script (#80)

* fix(release): remove --tag alpha flag from release:alpha script

The release:alpha script passed --tag alpha to changeset publish, but
this conflicts with changesets prerelease mode (pre.json has tag alpha
already set). This was previously fixed in PR #53 but regressed in
commit 816a882.

In prerelease mode, changeset publish uses the tag defined in
pre.json automatically. Passing --tag explicitly causes:
  error: Releasing under custom tag is not allowed in pre mode

* docs: update release:alpha command in Release-Readiness.md

Remove instruction that release:alpha must pass --tag alpha to
changeset publish. While in prerelease mode, the tag is controlled
by .changeset/pre.json and changeset rejects explicit --tag.

Author: mahyarmlk

docs/Release-Readiness.md

@@ -223,7 +223,8 @@ Key rules:
   - Version Packages PRs must not bump packages to stable versions.
   - Stable versions are only allowed after intentionally exiting prerelease mode via `pnpm changeset pre exit`.
   - The GitHub Actions PR creation setting (`GITHUB_TOKEN` permissions for creating and approving PRs) may need manual enabling after alpha versioning is fixed.
-  - `release:alpha` must run `changeset publish --tag alpha` so the published packages use the `alpha` npm dist-tag instead of overwriting `latest`.
+  - While in prerelease mode, the `alpha` npm dist-tag is controlled by `.changeset/pre.json` (the `"tag": "alpha"` field), not by the `release:alpha` command line.
+  - `release:alpha` must NOT pass `--tag alpha` to `changeset publish` because changeset rejects explicit `--tag` in prerelease mode.
 
 ### Validation gates
 

package.json

@@ -8,7 +8,7 @@
     "lint": "tsc -p tsconfig.typecheck.json",
     "changeset": "changeset",
     "version:packages": "changeset version",
-    "release:alpha": "pnpm build && pnpm pack:check && changeset publish --tag alpha",
+    "release:alpha": "pnpm build && pnpm pack:check && changeset publish",
     "pack:check": "pnpm -r --filter @intent-framework/core --filter @intent-framework/dom --filter @intent-framework/router --filter @intent-framework/testing exec npm pack --dry-run",
     "dev:web-basic": "pnpm --dir examples/web-basic dev",
     "dev:canonical": "pnpm --dir examples/canonical-invite dev"