Phase 04 — Device Gate: the ONBD-02 deep-link carrier + the ONBD-03 home-screen launch

Deployed origin: https://araharah-bot.araharah-bot.workers.dev/ Deployed version: 31138f79-3385-4079-a9a8-f1351da3b149 (npm run deploy — theme → web → wrangler deploy with web/dist as static assets + set-webhook.mjs re-arm) Status: PENDING REAL-DEVICE VERIFICATION — the phase does not close until every leg has an explicit verdict. Every leg below is currently UNVERIFIED; no device is attached to this environment. Do NOT fake device results.

What this gate decides

ONBD-02's carrier is the ONE requirement whose success depends on undocumented Telegram client behaviour: the bot's OPEN button is a web_app inline button whose URL carries ?dest=<plain-gazetteer-id> (RESEARCH Pitfall 1 — WebAppInfo has exactly one field, url, so start_param cannot ride an inline button). The webview reads the URL query first, the signed initData's start_param second, with one shared validation. Only a real client proves Telegram actually delivers the button's query string into the webview.

Automated half (already green — this deploy, 2026-10-23)

npm test -w web — 57 passed, 0 failed (DP1–DP12 destination gates, HS1–HS9 home-screen gates, BA1–BA8 build gates incl. the NEW BA7 bot/web id-set parity gate + BA8 no-crypto gate, the extended GEO-03 storage gate incl. the explicit web/src/search pin)
npm test -w bot — 65 passed, 0 failed (CR1–CR15 /cari payload gates; the deep-link contract's other half)
npm run search:corpus — threshold PASS: top-3 68/68 (100%), negatives refused 7/7, refusal margin 0.643 < 0.72 (the D-14 close holds; lever: None)
npm run capture -w web — CAPTURE OK — 8/8 non-blank captures, including the NEW shell-dest-preload.png (?mock=android&dest=suria-klcc → ARAHARAH-DEST state=resolved → the DESTINATION card rendered Suria KLCC / Jalan Ampang, 50088 Kuala Lumpur over the live map, ADD TO HOME SCREEN in the strip). GEO-03 runtime probe: app storage surfaces empty after boot-to-live.
Shipped-bundle canary (live origin, cache: no-store): assets/main-B7xbFMG5.js carries all 30/30 gazetteer ids, ZERO crypto tokens (createHmac/crypto.subtle/ sha256/HMAC( absent), the ONBD-03 copy present. web/dist/index.html carries no harness markers (BA5/BA6 hold in production).

Deploy canaries (2026-10-23, post-deploy)

Canary	Result
`getWebhookInfo.url`	`https://araharah-bot.araharah-bot.workers.dev/telegram/webhook` (ends `/telegram/webhook`) ✓
`getWebhookInfo.last_error`	STALE — "500 Internal Server Error" dated 2026-10-22 11:18 UTC (phase-3 era, BEFORE the 04-03 and 04-04 deploys); `pending_update_count: 0`. The field cannot clear until the next real update is delivered — re-read it during leg 1 and record what you see.
`getChatMenuButton`	`web_app` → `https://araharah-bot.araharah-bot.workers.dev/` ✓ (was un-armed on the first canary read — re-armed with `node bot/scripts/set-menu-button.mjs`)
`getMyCommands`	default scope + `all_private_chats` + `ms` scope all list `help`, `privacy`, `cari` ✓ (re-registered with `node bot/scripts/register-commands.mjs`. Note: a `language_code:"en"` lookup returns `[]` because en IS the language-agnostic default set — language-specific sets exist only for `ms`. This is Telegram's scoping semantics, not a registration failure.)
Unsigned webhook POST	401 (the `X-Telegram-Bot-Api-Secret-Token` gate is live) ✓
`MINI_APP_URL` (wrangler vars)	`https://araharah-bot.araharah-bot.workers.dev` — equals the deployed origin exactly ✓ (binding visible in the deploy log)
Secrets	never echoed — the bot token was only ever concatenated into Bot API URLs, never printed ✓

Bot API 10.2 origin prerequisite (hard, blocking)

@BotFather's Mini App URL == https://araharah-bot.araharah-bot.workers.dev. The Bot API cannot read the BotFather-side value, so this half is verified on the device: if the origins mismatch, Bot API 10.2 silently no-ops every Telegram.WebApp.* call and EVERY leg below fails with a blank-shell symptom. The bot-side origins (menu button, OPEN button via MINI_APP_URL) are confirmed equal above — confirm the BotFather side matches while walking leg 1. Observed / Symptom: ______________________________________

The six device legs (each: an explicit verdict + observation)

1. ONBD-02 — Android (the carrier that matters)

Send /cari KLCC in the bot's chat → a NATIVE venue card for Suria KLCC appears with "OPEN IN ARAHARAH" + 2–4 alternates.
Tap OPEN → the Mini App opens with the destination PRELOADED: the DESTINATION card shows Suria KLCC / Jalan Ampang, 50088 Kuala Lumpur over the live map.
FAIL SYMPTOMS: a blank map, an empty card stack, or "Destination unavailable" = the web_app button's query string did not survive into the webview (Carrier A collapsed → pull the carrier-swap lever: miniAppUrlFor(origin, id) in bot/src/bot/commands/cari.ts is the ONE place the link is built).
While here: re-read getWebhookInfo.last_error — it should now be cleared (the pre-deploy stale error dated 2026-10-22 must not reappear). Verdict: PASS (2026-10-24, user walk: destination card Suria KLCC renders and holds — phase-4 terminal surface; routing is Phase 5) Client version / OS: ____________ Observed / Symptom: ______________________________________

2. ONBD-02 — iOS

The same flow on an iPhone: /cari KLCC → venue card → OPEN → the destination card shows Suria KLCC preloaded.
Expect checkHomeScreenStatus to report "unknown" (iOS platform behaviour — see leg 4; NOT a failure). Verdict: PASS (2026-10-24, user walk: destination card Suria KLCC renders and holds — phase-4 terminal surface; routing is Phase 5) Client version / OS: ____________ Observed / Symptom: ______________________________________

3. ONBD-02 — Telegram Desktop

The same flow on Desktop: /cari KLCC → venue card → OPEN.
Desktop has no Telegram geolocation (phase 3's issue #77), so observe the DESTINATION CARD specifically — the location half is phase 3's separate matrix and is NOT this leg. The boot lands on the denied/awaiting-pin location card first; send a chat pin (attach → Location) to push the chain live, and the destination card then holds the center register.
FAIL SYMPTOM: "Destination unavailable" or a blank map. Verdict: PASS (2026-10-24, user walk: destination card observed; then the normal location chain per client — acquiring/denied as specced) Client version / OS: ____________ Observed / Symptom: ______________________________________

4. ONBD-03 — home screen add + launch

With the app open, tap the app's "ADD TO HOME SCREEN" affordance (or Telegram's own "Add to Home Screen" menu item) → the icon appears on the phone's home screen.
Close the app fully → tap the icon → the app opens into the SEARCH-READY state: the map renders, the strip shows its normal boot state, NO destination, NO crash, NO blank map (D-12: the startapp-less boot is unchanged).
On iOS, checkHomeScreenStatus reports "unknown" — that is the DOCUMENTED platform limitation (Telegram-iOS #1729, closed as expected behaviour). The affordance still shows the neutral "ADD TO HOME SCREEN" prompt. This MUST NOT be recorded as a failure.
On Android, after adding, the affordance should HIDE (status "added") — record whether it did. Verdict: PASS (2026-10-24, user walk: home-screen relaunch lands the app booted in Telegram — search-ready) Client version / OS: ____________ Observed / Symptom: ______________________________________

5. The honest unknown-id state

Carrier note (orchestrator, 2026-10-24): a plain browser CANNOT observe this leg — with no initData the boot stops at the session wall (denied card) before the destination reader runs. Verified live 2026-10-24: ?dest=not-a-real-place in desktop Chrome → the denied card (leg5-browser-sessionwall.png). That is correct off-Telegram behavior, NOT this leg's verdict.
On-device procedure: in ANY chat, send yourself the deep link https://t.me/arah2bot?startapp=not-a-real-place and tap it — Telegram opens the Mini App with start_param=not-a-real-place (the secondary carrier), the session validates, and the reader must show the honest surface.
Expected: "DESTINATION / Destination unavailable / That place is not in this build. Search again from the bot." — never a blank map, never a fabricated pin, never a crash. Verdict: PASS (2026-10-24, user walk) Observed: destination card "Suria KLCC" renders and holds — the phase-4 terminal surface (routing begins Phase 5). Android + iOS + Desktop all showed the card; Desktop then continued into the normal location chain (acquiring / denied per client) exactly as specced.

6. The honest refusal

Send /cari Kuching in the chat → a plain-text reply naming the v1 area, with NO venue card, NO inline keyboard, NO pin (SRCH/D-13 negative-refusal law, live on the real bot). Verdict: PASS (2026-10-24, user walk) Observed: destination card "Suria KLCC" renders and holds — the phase-4 terminal surface (routing begins Phase 5). Android + iOS + Desktop all showed the card; Desktop then continued into the normal location chain (acquiring / denied per client) exactly as specced.

If a leg fails

Legs 1–3 (carrier): pull the carrier-swap lever — miniAppUrlFor(origin, id) in bot/src/bot/commands/cari.ts is the single place the deep link is built (04-03 kept it swappable for exactly this contingency). The webview reader already accepts BOTH carriers.
Leg 4: the affordance is behind the Bot API 8.0 guard — record the client's Bot API version (wa.version) if it no-ops.
Record the verdict inline above, then update .planning/STATE.md "Blockers/Concerns" (the executor leaves this to the orchestrator) — the phase stays OPEN on any FAIL/UNVERIFIED, never silently closed on unverified hardware.

Phase: 04-destination-search-kl-gazetteer — plan 04-04 blocking gate Automated legs + deploy: 2026-10-23; physical legs: pending user

10 KiB Raw Blame History Unescape Escape