Fix IP address not being set on sessions from localhost

The extractClientIP() function only checked proxy headers (X-Forwarded-For,
CF-Connecting-IP, etc.) which don't exist when running locally without a proxy.

Changes:
- Add clientIP field to APIContext
- Use Bun's server.requestIP() to get client IP from direct socket connection
- Update getGeoInfo() to accept fallback IP parameter
- Pass context.clientIP to getGeoInfo() in auth procedures

Now sessions will have IP address set even for local development (::1 or 127.0.0.1).

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/api-server/src/utils/geo.ts

@@ -126,9 +126,16 @@ export const lookupGeoFromIP = (
 /**
  * Extract geolocation info from request headers.
  * Uses Cloudflare headers when available, falls back to GeoIP database lookup.
+ *
+ * @param headers - Request headers to extract proxy IP headers from
+ * @param fallbackIP - Optional fallback IP from direct socket connection (e.g., from Bun's server.requestIP)
  */
-export const getGeoInfo = (headers: Headers): GeoInfo => {
-  const ip = extractClientIP(headers);
+export const getGeoInfo = (
+  headers: Headers,
+  fallbackIP?: string | null,
+): GeoInfo => {
+  // Try proxy headers first, then fall back to direct connection IP
+  const ip = extractClientIP(headers) ?? fallbackIP ?? null;
 
   // Try Cloudflare geo headers first
   const cfCountry = headers.get("CF-IPCountry");