feat(deriv): integrate Deriv API websocket connectivity

Add Deriv API websocket client, route handling, and Firestore security rules to support automated trading integration.

package-lock.json

@@ -36,12 +36,14 @@
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@@ -3792,6 +3794,16 @@
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+      "license": "MIT",
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@@ -13094,9 +13106,9 @@
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