v0.1.7: collapse flat-rate zones to one option; add DL capture script

- Start-session: when the single-estimate fallback finds the same price at the
  min and max duration (a flat-rate zone like DL), show ONE option — "$X flat,
  parked until <end>" — instead of a wall of identical-price rungs. No reason to
  offer shorter durations when the price doesn't change.
- capture-dl.mjs: dumps the DL zone's live requests+responses (tokens redacted)
  to ~/Downloads/dl-capture/ for a durable record.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

parksmarter-client/capture-dl.mjs

@@ -0,0 +1,65 @@
+/**
+ * capture-dl.mjs — record the live requests + responses for the Sandpoint "DL"
+ * zone (ZoneID 113165 / SpaceID 329522 / CustomerID 217) so we have a durable
+ * record of its odd flat-rate behavior.
+ *
+ * Writes one JSON file per call (request line with tokens redacted by the client
+ * + the full parsed response) to ~/Downloads/dl-capture/ plus a _summary.json.
+ *
+ * Usage:  node capture-dl.mjs        (needs ./.creds.json)
+ */
+import { readFileSync, mkdirSync, writeFileSync } from 'node:fs';
+import { homedir } from 'node:os';
+import { join } from 'node:path';
+import { ParkSmarterClient } from './dist/index.js';
+
+const c = JSON.parse(readFileSync('./.creds.json', 'utf8'));
+const OUT = join(homedir(), 'Downloads', 'dl-capture');
+mkdirSync(OUT, { recursive: true });
+
+const reqLog = [];
+const ps = new ParkSmarterClient({
+  environment: 'prodv2',
+  timeoutMs: 20000,
+  logRequests: true, // the client redacts Auth_Token/Application_Token/SessionId
+  logSink: (line) => reqLog.push(line),
+});
+
+await ps.loginWithPhone({ phoneNumber: c.phoneNumber, password: c.password });
+const me = await ps.getUserDetail();
+const vehicleId = me?.VehicleDetails?.[0]?.VehicleID;
+const base = { zoneId: 113165, spaceId: 329522, customerId: 217, vehicleId };
+
+const save = (name, obj) => writeFileSync(join(OUT, `${name}.json`), JSON.stringify(obj, null, 2) + '\n');
+const summary = { zone: base, note: 'Sandpoint DL zone — flat $0.10, MaxTime = minutes until the paid-window boundary; ParkingEstimateMulti errors here.', calls: [] };
+
+async function cap(name, fn) {
+  const from = reqLog.length;
+  let response = null, error = null;
+  try { response = await fn(); } catch (e) { error = `${e.name} ${e.status ?? ''} ${e.message}`; }
+  const entry = { name, capturedField: 'request+response', request: reqLog.slice(from), response, error };
+  save(name, entry);
+  summary.calls.push({ name, ok: !error, error });
+  console.log(`  ${name}: ${error ? 'ERR ' + error : 'ok'}`);
+}
+
+console.log(`Capturing DL zone -> ${OUT}`);
+// The zone/space/policy record (search for DL by name).
+await cap('00-zone-DL', async () => {
+  const byName = await ps.getMetersByZoneName('DL');
+  const z = (byName?.Zones || []).find((z) => (z.ZoneId ?? z.ZoneID) == 113165) ?? byName?.Zones?.[0];
+  return z ?? { note: 'DL zone not found by name lookup' };
+});
+// Single-estimate at a spread of durations (shows the flat $0.10 + moving MaxTime).
+for (const d of [5, 15, 30, 60, 120, 240, 480]) {
+  await cap(`10-estimate-single-${String(d).padStart(3, '0')}min`, () =>
+    ps.getParkingEstimateSingle({ ...base, durationInMinutes: d, creditCardId: 0 }),
+  );
+}
+// The multi ladder (errors for this zone) and the item-based estimate.
+await cap('20-estimate-multi', () => ps.getParkingEstimateMulti(base));
+await cap('21-estimate-items', () => ps.getParkingEstimateItems(base));
+
+summary.capturedAtLocalNote = 'timestamps are inside each request/response line';
+save('_summary', summary);
+console.log(`Done. ${summary.calls.length + 1} files in ${OUT}`);