Adding changelog generation

script/release

@@ -67,6 +67,29 @@ chmod +x "${DIST}"/*
 echo "==> Binaries:"
 ls -lh "${DIST}"/
 
+# ── Changelog ──────────────────────────────────────────────────
+echo "==> Generating changelog..."
+PREV_TAG=$(git describe --tags --abbrev=0 2>/dev/null || echo "")
+if [ -n "$PREV_TAG" ]; then
+  CHANGELOG=$(git log "${PREV_TAG}..HEAD" --pretty=format:"- %s" --no-merges)
+  RANGE="${PREV_TAG}...${TAG}"
+else
+  CHANGELOG=$(git log --pretty=format:"- %s" --no-merges)
+  RANGE="initial...${TAG}"
+fi
+
+if [ -z "$CHANGELOG" ]; then
+  CHANGELOG="- No changes since last release"
+fi
+
+RELEASE_BODY="## What's Changed
+
+${CHANGELOG}
+
+**Full diff:** ${GITEA_URL}/${REPO}/compare/${RANGE}"
+
+echo "$RELEASE_BODY"
+
 # ── Tag & Push ─────────────────────────────────────────────────
 echo "==> Tagging ${TAG}..."
 git tag -a "$TAG" -m "Release ${TAG}"
@@ -74,11 +97,20 @@ git push origin "$TAG"
 
 # ── Create Gitea Release ──────────────────────────────────────
 echo "==> Creating release on Gitea..."
+RELEASE_JSON=$(python3 -c "
+import json, sys
+print(json.dumps({
+    'tag_name': sys.argv[1],
+    'name': sys.argv[1],
+    'body': sys.argv[2]
+}))
+" "$TAG" "$RELEASE_BODY")
+
 RELEASE_RESPONSE=$(curl -sf -X POST \
   -H "Authorization: token ${GITEA_TOKEN}" \
   -H "Content-Type: application/json" \
   "${GITEA_URL}/api/v1/repos/${REPO}/releases" \
-  -d "{\"tag_name\": \"${TAG}\", \"name\": \"${TAG}\", \"body\": \"Release ${TAG}\"}")
+  -d "$RELEASE_JSON")
 
 RELEASE_ID=$(echo "$RELEASE_RESPONSE" | python3 -c "import sys,json; print(json.load(sys.stdin)['id'])")