replay ui fix (#56)

* refactor: rename inspect to replay across the codebase

Renames inspect-ui/ to replay-ui/, internal/inspect/ to internal/replay/,
the CLI subcommand from `sanderling inspect` to `sanderling replay`, and
updates all references in docs, Makefile, README, and Go comments.

* feat(replay-ui): show spec filename with full path on hover

RunList and RunDetail now render the basename of spec_path (e.g.
login.spec.ts) with the full path available as a title tooltip.

replay-ui/src/api.ts

@@ -0,0 +1,25 @@
+import type { Run, RunSummary, Step } from "./types";
+
+async function getJson<T>(path: string): Promise<T> {
+  const response = await fetch(path, { headers: { Accept: "application/json" } });
+  if (!response.ok) {
+    throw new Error(`request failed: ${response.status} ${response.statusText} (${path})`);
+  }
+  return (await response.json()) as T;
+}
+
+export function listRuns(): Promise<RunSummary[]> {
+  return getJson<RunSummary[]>("/api/runs");
+}
+
+export function getRun(runId: string): Promise<Run> {
+  return getJson<Run>(`/api/runs/${encodeURIComponent(runId)}`);
+}
+
+export function getStep(runId: string, index: number): Promise<Step> {
+  return getJson<Step>(`/api/runs/${encodeURIComponent(runId)}/steps/${index}`);
+}
+
+export function screenshotUrl(runId: string, name: string): string {
+  return `/api/runs/${encodeURIComponent(runId)}/screenshots/${encodeURIComponent(name)}`;
+}