fix: publish pre-release crates to crates.io

chore: set prerelease=true for pre-release semver packages in release-please config
chore: publish pre-releases to crates.io instead of dry-run
Assisted-by: Claude Code (Claude Sonnet 4.6)

Author: jdc-pub

.config/release-please-config.json

@@ -10,13 +10,16 @@
   "pull-request-footer": "This release was generated with [Release Please](https://github.com/googleapis/release-please).",
   "packages": {
     "crates/git-metadata": {
-      "release-as": "0.3.0-rc.1"
+      "release-as": "0.3.0-rc.1",
+      "prerelease": true
     },
     "crates/git-ledger": {
-      "release-as": "0.1.0-alpha.1"
+      "release-as": "0.1.0-alpha.1",
+      "prerelease": true
     },
     "crates/git-chain": {
-      "release-as": "0.1.0-alpha.1"
+      "release-as": "0.1.0-alpha.1",
+      "prerelease": true
     }
   },
   "plugins": [{ "type": "sentence-case" }, { "type": "cargo-workspace" }],

.github/workflows/CD.yml

@@ -62,16 +62,11 @@ jobs:
       - name: Publish to crates.io
         env:
           CARGO_REGISTRY_TOKEN: ${{ secrets.CARGO_REGISTRY_TOKEN }}
-          IS_PRERELEASE: ${{ github.event.release.prerelease }}
         run: |
           CRATE="${{ needs.check-tag.outputs.crate-name }}"
           if [ -n "$CRATE" ]; then
             PKG_FLAG="-p $CRATE"
           else
             PKG_FLAG="--workspace"
           fi
-          if [ "$IS_PRERELEASE" = "true" ]; then
-            cargo publish $PKG_FLAG --dry-run
-          else
-            cargo publish $PKG_FLAG --token "$CARGO_REGISTRY_TOKEN"
-          fi
+          cargo publish $PKG_FLAG --token "$CARGO_REGISTRY_TOKEN"