fix: skip workflow_dispatch for delete — Gitea DELETE commits trigger on:push

Gitea Contents API DELETE commits fire on:push CI; POST/PUT do not.
delete was triggering both on:push and workflow_dispatch → 2 CI runs.
Now dispatch is skipped for delete; on:push handles the rebuild.

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

scripts/patch-micropub-gitea-dispatch-conditional.mjs

@@ -0,0 +1,42 @@
+/**
+ * Patch: skip workflow_dispatch for delete actions.
+ *
+ * Gitea's Contents API DELETE commits DO trigger on:push CI, while
+ * POST/PUT commits do not. Without this patch, delete fires both
+ * on:push and workflow_dispatch → 2 CI runs.
+ *
+ * create/update/undelete: only dispatch fires (1 CI run) ✓
+ * delete: only on:push fires (1 CI run) ✓
+ */
+
+import { readFile, writeFile, access } from "node:fs/promises";
+
+const TARGET = "node_modules/@indiekit/endpoint-micropub/lib/controllers/action.js";
+const MARKER = "// [patch] micropub-gitea-dispatch-conditional";
+
+const OLD = `    _dispatchGiteaBuild().catch(() => {});`;
+const NEW = `    if (action !== "delete") _dispatchGiteaBuild().catch(() => {}); ${MARKER}`;
+
+async function exists(p) {
+  try { await access(p); return true; } catch { return false; }
+}
+
+if (!(await exists(TARGET))) {
+  console.log(`[postinstall] micropub-gitea-dispatch-conditional: target not found, skipping`);
+  process.exit(0);
+}
+
+const source = await readFile(TARGET, "utf8");
+
+if (source.includes(MARKER)) {
+  console.log("[postinstall] micropub-gitea-dispatch-conditional: already patched");
+  process.exit(0);
+}
+
+if (!source.includes(OLD)) {
+  console.warn("[postinstall] micropub-gitea-dispatch-conditional: snippet not found — is patch-micropub-gitea-dispatch applied first?");
+  process.exit(0);
+}
+
+await writeFile(TARGET, source.replace(OLD, NEW), "utf8");
+console.log(`[postinstall] micropub-gitea-dispatch-conditional: patched ${TARGET}`);