chore: update sample env

Author: Rajil1213

.sample_env

@@ -1,30 +1,5 @@
-# Bitcoind Configuration
-BITCOIND_RPC_PORT=9823
-BITCOIND_HOST=bitcoind
-BITCOIND_RPC_USER=alpen
-BITCOIND_RPC_PASSWORD=alpen
-BITCOIND_WALLET=alp_wallet
-
-# Build Configuration
-BUILD_PROFILE=release
-
-NETWORK=regtest
-
-# Reth Service Ports
-RETH_AUTH_RPC_PORT=8551
-RETH_PORT=8545
-RETH_HOST=reth
-
-# Sequencer Configuration
-BTC_ADDRESS=bcrt1qc8meqsdvkw93h4n2xv7yucstq9spd4x4s44zww
-
-JWTSECRET=7df2f4bc998cbf0631d0c871bf06b5caa3f2ab48afa1856b81b814afa898bf71
-SECRETKEY=alpen_7815_4840_7552_8802_5747x
-RPC_PORT=12332
-DB_RETRY_COUNT=5
-L2_BLOCKS_FETCH_LIMIT=100
-L1_FOLLOW_DISTANCE=6
-MAX_REORG_DEPTH=4
-CLIENT_POLL_DUR_MS=2000
-CHECKPOINT_INTERVAL=20000000
-
+export DATABASE_URL="sqlite://./operator.db"
+export BTC_PORT=18443
+export BTC_USER=rpcuser
+export BTC_PASSWORD=rpcpassword
+export WALLET_PREFIX=wallet