add Boundless proving option

Author: willemolding

.env.example

@@ -0,0 +1,20 @@
+
+############# Boundless configuration #############
+
+
+RPC_URL="" # RPC For Base mainnet
+SIGNER="" # Private key for account on Base with funds in Boundless market
+
+
+############# Boundless storage configuration #############
+
+PINATA_JWT="" # (easiest) JWT for Pinata account to upload proving inputs and ELF to be found by provers
+
+# OR
+
+# S3 or R2 configuration
+S3_ACCESS_KEY=""
+S3_SECRET_KEY=""
+S3_BUCKET=""
+S3_URL=""
+AWS_REGION=""

.gitignore

@@ -2,4 +2,6 @@
 
 **/target/
 
-.claude
+.claude
+
+.env