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, 56 insertions, 0 deletions

diff --git a/source/library/graphql/operations.ts b/source/library/graphql/operations.ts
new file mode 100644
index 0000000..b34aeee
--- /dev/null
+++ b/source/library/graphql/operations.ts
@@ -0,0 +1,56 @@
+
+
+
+/*** IMPORT ------------------------------------------- ***/
+
+import { parse } from "graphql";
+
+/*** EXPORT ------------------------------------------- ***/
+
+export type OperationInfo = {
+  name: string | null;
+  type: "mutation" | "query" | "subscription";
+};
+
+export function deriveTitle(query: string, ops: OperationInfo[]): string {
+  const first = ops[0];
+
+  if (first && first.name)
+    return first.name;
+
+  if (first)
+    return first.type;
+
+  const trimmed = query.trim();
+
+  if (!trimmed)
+    return "untitled";
+
+  return trimmed.slice(0, 20);
+}
+
+export function parseOperations(query: string): OperationInfo[] {
+  const trimmed = query.trim();
+
+  if (!trimmed)
+    return [];
+
+  try {
+    const doc = parse(trimmed);
+    const ops: OperationInfo[] = [];
+
+    for (const def of doc.definitions) {
+      if (def.kind !== "OperationDefinition")
+        continue;
+
+      ops.push({
+        name: def.name?.value ?? null,
+        type: def.operation
+      });
+    }
+
+    return ops;
+  } catch {
+    return [];
+  }
+}