Initial commit: @eol/graphiql v0.3

Svelte 5 GraphiQL alternative for JSR. Covers:
- HTTP fetcher with injectable fetch; SSE/WS stubs
- Session store with tabs, auto-titling, persistence, rename
- Operation detection via graphql parse(); Toolbar picker
- CodeMirror 6 editor via cm6-graphql with theme prop
- Light theme preset (hand-rolled EditorView.theme)
- Doc explorer with breadcrumb nav and type guards
- History panel with 100-entry cap, favorite pinning
- Deno tests for operations, storage, and history eviction

1 files changed, 30 insertions, 0 deletions

diff --git a/source/library/fetcher/http.ts b/source/library/fetcher/http.ts
new file mode 100644
index 0000000..3138226
--- /dev/null
+++ b/source/library/fetcher/http.ts
@@ -0,0 +1,30 @@
+
+
+
+/*** UTILITY ------------------------------------------ ***/
+
+import type { Fetcher, FetcherOptions } from "./types.ts";
+
+/*** EXPORT ------------------------------------------- ***/
+
+export function createHttpFetcher(options: FetcherOptions): Fetcher {
+  const fetchImpl = options.fetch ?? globalThis.fetch;
+
+  return async (req) => {
+    const response = await fetchImpl(options.url, {
+      body: JSON.stringify({
+        operationName: req.operationName,
+        query: req.query,
+        variables: req.variables
+      }),
+      headers: {
+        "Content-Type": "application/json",
+        ...options.headers,
+        ...req.headers
+      },
+      method: "POST"
+    });
+
+    return await response.json();
+  };
+}