init: extract mobile app from bincio_activity

Expo/React Native app with local SQLite archive and bincio-activity sync.

extraction/extractServer.ts

@@ -0,0 +1,63 @@
+import type { ExtractionResult } from './extractActivity';
+
+export async function checkServerAuth(instanceUrl: string, token: string): Promise<void> {
+  let resp: Response;
+  try {
+    resp = await fetch(`${instanceUrl}/api/feed`, {
+      headers: { Authorization: `Bearer ${token}` },
+    });
+  } catch {
+    throw new Error('Could not reach Bincio instance — check your connection.');
+  }
+  if (resp.status === 401) throw new Error('Session expired — reconnect in Settings.');
+  if (!resp.ok) throw new Error(`Server error (${resp.status})`);
+}
+
+export async function extractFileViaServer(
+  filename: string,
+  base64: string,
+  instanceUrl: string,
+  token: string,
+  onStatus: (msg: string) => void = () => {},
+): Promise<ExtractionResult> {
+  onStatus('Uploading to Bincio instance…');
+
+  let resp: Response;
+  try {
+    resp = await fetch(`${instanceUrl}/api/upload/raw`, {
+      method: 'POST',
+      headers: {
+        Authorization: `Bearer ${token}`,
+        'Content-Type': 'application/json',
+      },
+      body: JSON.stringify({ filename, base64 }),
+    });
+  } catch {
+    throw new Error('Could not reach Bincio instance — check your connection.');
+  }
+
+  if (resp.status === 401) throw new Error('Session expired — reconnect in Settings.');
+  if (resp.status === 422) {
+    const body = await resp.json().catch(() => ({})) as { detail?: string };
+    throw new Error(body.detail ?? 'Server could not process this file.');
+  }
+  if (!resp.ok) throw new Error(`Server error (${resp.status})`);
+
+  onStatus('Processing on server…');
+  const data = await resp.json() as {
+    ok: boolean;
+    id: string;
+    detail: object;
+    timeseries: object | null;
+    geojson: object | null;
+    source_hash: string;
+  };
+
+  return {
+    id: data.id,
+    detail: data.detail,
+    timeseries: data.timeseries,
+    geojson: data.geojson,
+    sourceHash: data.source_hash,
+  };
+}