feat(offline): implicit net-state model, two-tier version gate, unified lobby

Land the offline-model redesign (ANDROID_PLAN.md O1-O7): replace the explicit offline toggle with a single detected net-state machine, unify the lobby, and add a two-tier client-version gate. Contour-safe: both version vars empty => dormant, the wire change is additive, so web/pwa/vk/tg behaviour is unchanged unless the gate is deliberately configured.

O1 net-state reducer (test-first). O2 store + wiring (connection/offline shims; +@capacitor/network). O3 remove the offline toggle + migrate the pref. O4 two-tier gate: hard update_required degrades to an offline Update/Play-offline notice (not terminal); soft GATEWAY_RECOMMENDED_CLIENT_VERSION -> X-Update-Recommended nudge. O5 unified lobby (device-local + greyed-from-cache server games; self-set identity; closes G-step-0). O6 create flows (with-friends online/offline segment + offline dict guard). O7 docs.

Telegram/VK stay online-only (contour review): the offline model is channel-gated via offlineCapable() (native + plain web; false in the mini-apps). offlineMode.active is hard-gated on it, so the whole model (blue chrome, unified/greyed lobby, transport kill switch, device-local vs_ai/hotseat create) stays inert in Telegram/VK regardless of the detected net state (closing a version-lock path that could have flipped them offline); and New Game's with-friends hides the online/offline segment there, leaving the remote invite alone. ARCHITECTURE already declared "Telegram/VK are exempt" - this makes the code match.

Deploy/CI: wire the version gate through the deploy (GATEWAY_MIN_CLIENT_VERSION + GATEWAY_RECOMMENDED_CLIENT_VERSION as plain unprefixed vars via compose + ci.yaml + prod-deploy.yaml + write-prod-env.sh + .env.example) so the gate is live when set (test-contour commit-hash version fails open; empty => dormant). Disable the manual android-build CI workflow for now (rename .disabled). Bump the app bundle budget 127->130 KB for the added always-loaded wiring. Fix the UI Docker stage (gateway/Dockerfile): install --ignore-scripts so the Alpine/musl SPA build no longer tries to native-build sharp (a local android:assets tool, unused in the image); esbuild's binary is an optional dep so Vite still builds.

Tests: gateway go green (two-tier gate over a real HTTP handler); docker build of the landing + gateway targets green locally; compose --no-interpolate confirms the gateway env; two new telegram.spec.ts e2e (offline signal keeps the chrome online + quick-match opponent choice visible => server enqueue; with-friends shows no pass-and-play), RED-verified; svelte-check 0/0, vitest 617, e2e 248 (chromium + webkit), build + bundle-size 127.8/130.

ui/e2e/native.spec.ts

@@ -63,15 +63,18 @@ test.describe('native offline-first', () => {
       expect(await page.locator('[data-cell].filled').count()).toBeGreaterThan(3);
     }).toPass({ timeout: 15000 });
 
-    // Back to the lobby, then the network returns: reconciliation silently mints + adopts a server
-    // guest and clears the auto-offline, so online lights up — the offline tint drops, the seeded
-    // online game (vs Ann) appears and the Stats tab re-enables. (The local vs_ai game stays
-    // device-only, so the online lobby list no longer shows it — that is the intended split.)
+    // Back to the lobby (still offline): the device-local vs_ai game (🤖) is listed. Then the network
+    // returns: reconciliation silently mints + adopts a server guest and clears the auto-offline, so
+    // online lights up — the offline tint drops, the seeded online game (vs Ann) appears and Stats
+    // re-enables. The local game STAYS visible in the unified lobby alongside the server games — a
+    // reconciled guest keeps its device-local games (this closes G-step-0).
     await page.getByRole('button', { name: /Back|Назад/i }).click();
     await expect(page.locator('button.tab').nth(2)).toBeVisible();
+    await expect(page.locator('.rowwrap').filter({ hasText: '🤖' })).toBeVisible(); // the local vs_ai game, listed while offline
     await page.evaluate(() => (window as unknown as { __native: { reconcile(): void } }).__native.reconcile());
     await expect(page.locator('header.nav.offline')).toHaveCount(0);
     await expect(page.getByText('Ann', { exact: false }).first()).toBeVisible({ timeout: 15000 });
+    await expect(page.locator('.rowwrap').filter({ hasText: '🤖' })).toBeVisible(); // still listed online — the reconciled guest keeps it (G-step-0)
     await expect(page.locator('button.tab').nth(1)).toBeEnabled();
 
     // The native sign-in surface is guest + email only: on Profile the Telegram + VK LINK buttons are