[FEAT] Raw OPRF (no ZK no MPC) for browser extension

proto/api.proto

@@ -212,6 +212,20 @@ message MessageReveal {
 	message MessageRevealZk {
 		repeated ZKProof proofs = 1;
 		repeated TOPRFProof toprfs = 2;
+		/** Markers for server-side OPRF computation (oprf-raw mode) */
+		repeated OPRFRawMarker oprfRawMarkers = 3;
+		/**
+		 * If an oprf-raw marker from the previous packet overshot into this packet,
+		 * this indicates how many bytes of plaintext from this packet should be
+		 * collected to complete the server-side OPRF computation.
+		 */
+		uint32 overshotOprfRawLength = 4;
+	}
+
+	/** Marker for server-side OPRF computation (oprf-raw mode). */
+	message OPRFRawMarker {
+		/** Location of the data to OPRF in the revealed plaintext */
+		DataSlice dataLocation = 1;
 	}
 
 	message ZKProof {

src/client/create-claim.ts

@@ -515,12 +515,13 @@ async function _createClaimOnAttestor<N extends ProviderName>(
 			revealedPackets.push(...packets.filter(p => p.sender === 'server'))
 		} else {
 			for(const {
-				block, redactedPlaintext, overshotToprfFromPrevBlock, toprfs
+				block, redactedPlaintext, overshotToprfFromPrevBlock, toprfs, oprfRawMarkers
 			} of serverPacketsToReveal) {
 				setRevealOfMessage(block.message, {
 					type: 'zk',
 					redactedPlaintext,
 					toprfs,
+					oprfRawMarkers,
 					overshotToprfFromPrevBlock
 				})
 				revealedPackets.push(