Initial commit: CI Agent competitive-intelligence monitoring app

FastAPI + Celery + Next.js + Postgres/Redis app with company monitoring,
source collection, LLM-based change analysis, enrichment, and account
security (Turnstile, escalating lockout, email verification).

apps/api/app/notifications/telnyx_sms.py

@@ -0,0 +1,50 @@
+"""Telnyx SMS provider via Telnyx's Programmable Messaging REST API (no SDK
+dependency - just a Bearer-authenticated POST), mirroring twilio_sms.py's
+shape. No-ops with a clear error if Telnyx isn't configured; the caller
+(alert_service) is what additionally gates on `NOTIFICATION_SMS_ENABLED`
+before ever constructing this provider.
+"""
+
+from __future__ import annotations
+
+import httpx
+
+from app.core.config import Settings
+from app.notifications.base import DeliveryResult, NotificationMessage
+
+_API_URL = "https://api.telnyx.com/v2/messages"
+
+
+class TelnyxSmsProvider:
+    provider_name = "telnyx_sms"
+
+    def __init__(self, settings: Settings) -> None:
+        self._settings = settings
+
+    async def send(self, message: NotificationMessage) -> DeliveryResult:
+        settings = self._settings
+        if not (settings.telnyx_api_key and settings.telnyx_from_number):
+            return DeliveryResult(success=False, error="Telnyx is not configured")
+
+        try:
+            async with httpx.AsyncClient(timeout=15) as client:
+                response = await client.post(
+                    _API_URL,
+                    headers={"Authorization": f"Bearer {settings.telnyx_api_key}"},
+                    json={
+                        "from": settings.telnyx_from_number,
+                        "to": message.destination_value,
+                        "text": message.body_text,
+                    },
+                )
+        except httpx.HTTPError as exc:
+            return DeliveryResult(success=False, error=str(exc))
+
+        data = response.json()
+        if response.status_code >= 400:
+            errors = data.get("errors") or []
+            detail = errors[0].get("detail") if errors else response.text[:200]
+            return DeliveryResult(
+                success=False, error=f"Telnyx error {response.status_code}: {detail}"
+            )
+        return DeliveryResult(success=True, external_message_id=data.get("data", {}).get("id"))