fix: Rename GITEA_TOKEN to RELEASE_TOKEN in CI workflow

Gitea reserves GITEA_* and GITHUB_* prefixes for secrets.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.gitea/workflows/build-companion.yml

@@ -43,7 +43,7 @@ jobs:
 
       - name: Create Release
         env:
-          GITEA_TOKEN: ${{ secrets.GITEA_TOKEN }}
+          RELEASE_TOKEN: ${{ secrets.RELEASE_TOKEN }}
         run: |
           VERSION=${{ steps.version.outputs.VERSION }}
           REPO="vantzs/corrosion-admin-panel"
@@ -51,28 +51,28 @@ jobs:
 
           # Create release
           RELEASE_ID=$(curl -s -X POST \
-            -H "Authorization: token ${GITEA_TOKEN}" \
+            -H "Authorization: token ${RELEASE_TOKEN}" \
             -H "Content-Type: application/json" \
             -d "{\"tag_name\": \"${VERSION}\", \"name\": \"Companion Agent ${VERSION}\", \"body\": \"Companion Agent release ${VERSION}\", \"draft\": false, \"prerelease\": false}" \
             "${API_URL}/repos/${REPO}/releases" | jq -r '.id')
 
           # Upload Linux binary
           curl -s -X POST \
-            -H "Authorization: token ${GITEA_TOKEN}" \
+            -H "Authorization: token ${RELEASE_TOKEN}" \
             -H "Content-Type: application/octet-stream" \
             --data-binary @companion-agent/bin/corrosion-companion-linux-amd64 \
             "${API_URL}/repos/${REPO}/releases/${RELEASE_ID}/assets?name=corrosion-companion-linux-amd64"
 
           # Upload Windows binary
           curl -s -X POST \
-            -H "Authorization: token ${GITEA_TOKEN}" \
+            -H "Authorization: token ${RELEASE_TOKEN}" \
             -H "Content-Type: application/octet-stream" \
             --data-binary @companion-agent/bin/corrosion-companion-windows-amd64.exe \
             "${API_URL}/repos/${REPO}/releases/${RELEASE_ID}/assets?name=corrosion-companion-windows-amd64.exe"
 
           # Upload checksums
           curl -s -X POST \
-            -H "Authorization: token ${GITEA_TOKEN}" \
+            -H "Authorization: token ${RELEASE_TOKEN}" \
             -H "Content-Type: application/octet-stream" \
             --data-binary @companion-agent/bin/checksums.txt \
             "${API_URL}/repos/${REPO}/releases/${RELEASE_ID}/assets?name=checksums.txt"