feat: Bevy frontend integration

.env.example

@@ -92,6 +92,75 @@
 # Default: not set
 # RISC0_DEV_MODE=1
 
+# ============================================================
+# SP1 ZK Backend Settings
+# ============================================================
+
+# SP1 Prover Mode
+# Options: cpu, network, cuda, mock
+# - cpu: Local CPU proving (slow, high memory usage, requires Docker for Groth16)
+# - network: Succinct Prover Network (fast, requires API key)
+# - cuda: Local CUDA GPU proving (fastest, requires NVIDIA GPU)
+# - mock: Mock proving for testing (instant, no real proofs)
+# Default: cpu
+# SP1_PROVER=network
+
+# SP1 Proof Type
+# Options: compressed, groth16, plonk
+# - compressed: Compressed STARK (~4-5MB, off-chain verification)
+# - groth16: Groth16 SNARK (~260 bytes, on-chain, Sui compatible)
+# - plonk: PLONK SNARK (~868 bytes, on-chain, no trusted setup)
+# Default: compressed
+# SP1_PROOF_MODE=groth16
+
+# Network Prover Configuration (required for SP1_PROVER=network)
+# Get your API key from: https://network.succinct.xyz
+#
+# SECURITY WARNING: Never commit private keys to version control!
+# RECOMMENDED: Use `export NETWORK_PRIVATE_KEY=0x...` in your shell instead of storing in .env
+# NETWORK_PRIVATE_KEY=0x...
+
+# Custom RPC endpoint (optional, defaults to mainnet)
+# NETWORK_RPC_URL=https://rpc.succinct.xyz
+
+# ============================================================
+# Sui Blockchain Integration
+# ============================================================
+
+# Sui network to connect to
+# Options: mainnet, testnet, local
+# Default: testnet
+# SUI_NETWORK=testnet
+
+# Deployed game package ID (Move package object ID)
+# Required for blockchain interactions
+# Get this after deploying contracts with `sui client publish`
+# SUI_PACKAGE_ID=0x...
+
+# Verifying key object ID (on-chain VK for proof verification)
+# Automatically set after running `just sui-setup`
+# SUI_VK_OBJECT_ID=0x...
+
+# Game session object ID (for current active session)
+# Set when creating a new on-chain session
+# SUI_SESSION_OBJECT_ID=0x...
+
+# Custom RPC endpoint URL (optional, overrides network default)
+# Defaults:
+#   mainnet: https://fullnode.mainnet.sui.io:443
+#   testnet: https://fullnode.testnet.sui.io:443
+#   local:   http://127.0.0.1:9000
+# SUI_RPC_URL=https://custom-rpc.example.com
+
+# Gas budget for transactions (in MIST)
+# Default: 100000000 (0.1 SUI)
+# SUI_GAS_BUDGET=100000000
+
+# Active address alias (for sui keystore)
+# Used to select which address to use for transactions
+# Default: first address in keystore
+# SUI_ACTIVE_ALIAS=my_address_alias
+
 # ============================================================
 # Advanced: Runtime Tuning
 # ============================================================