Create .env.example

Signed-off-by: irfanshaik11 <[email protected]>

Author: irfanshaik11

karak_offchain/operator/.env.example

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+PORT=3006
+HOST=0.0.0.0
+DOMAIN_URL=http://0.0.0.0:3006
+AGGREGATOR_URL=http://0.0.0.0:3005
+HEARTBEAT=5000
+RPC_URL=https://ethereum-holesky-rpc.publicnode.com
+CORS_ORIGIN=*
+COMMON_RATE_LIMIT_WINDOW_MS=1000
+COMMON_RATE_LIMIT_MAX_REQUESTS=10000
+PRIVATE_KEY=6d35c1bdf469031cfe3cbaddd57ca69a36835a39c2a6f2cefc17c804851b0635
+BLOCK_NUMBER_STORE=/dss/contracts/block-number-store.json
+RUST_LOG=info
+SQUARE_NUMBER_DSS_ADDRESS=0x9A9f2CCfdE556A7E9Ff0848998Aa4a0CFD8863AE
+TXN_VERIFIER_ADDRESS=0xCbb651f2F7FEd1264224D20F75BEF371549E71C9
+CORE_ADDRESS=0x9bd03768a7DCc129555dE410FF8E85528A4F88b5
+RUST_BACKTRACE=full