Bundles feature WIP + fix request-access products cap (20 -> 200)

- app/main.py: raise products_raw[:20] cap to [:200] in /api/request-access
  and /api/request-more-access - was silently truncating access requests
  with more than 20 selected products
- accumulated bundles/product-page WIP (config, models, runtime, templates)

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

app/models.py

@@ -50,6 +50,7 @@ class Service(Base):
     svc_password: Mapped[str] = mapped_column(String(256), default="")
     svc_cred_hint: Mapped[str] = mapped_column(Text, default="")
     icon_path: Mapped[str] = mapped_column(Text, default="")
+    seo_description: Mapped[str] = mapped_column(Text, default="")
     active: Mapped[bool] = mapped_column(Boolean, default=True)
     warm_pool_size: Mapped[int] = mapped_column(Integer, default=0)
     created_at: Mapped[dt.datetime] = mapped_column(DateTime(timezone=True), default=lambda: dt.datetime.now(dt.timezone.utc))
@@ -130,3 +131,9 @@ class PendingAccessRequest(Base):
     portal_url: Mapped[str] = mapped_column(String(256), default="")
     status: Mapped[str] = mapped_column(String(16), default="pending")
     created_at: Mapped[dt.datetime] = mapped_column(DateTime(timezone=True), default=lambda: dt.datetime.now(dt.timezone.utc))
+    # Telegram delivery tracking: the notification is sent once when the
+    # request is created; if that attempt fails (tel.4mont.ru down/timeout),
+    # a background retry loop resends telegram_message every 5 minutes until
+    # it succeeds, without recomputing geo/IP each time.
+    telegram_notified: Mapped[bool] = mapped_column(Boolean, default=False)
+    telegram_message: Mapped[str] = mapped_column(Text, default="")