feat: add sealed bid auction example

.cursorignore

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+# Add directories or file patterns to ignore during indexing (e.g. foo/ or *.csv)
+**/target/**
+**/node_modules/**
+**/dist/**
+**/build/**
+**/logs/**
+**/tmp/**
+**/.anchor/**
+**/artifacts/**

sealed_bid_auction/.gitignore

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+.anchor
+.DS_Store
+target
+**/*.rs.bk
+node_modules
+test-ledger
+.yarn
+encrypted-ixs/arcis_temp_target
+build
+encrypted-ixs/src/main.rs
+artifacts/

sealed_bid_auction/.prettierignore

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+.anchor
+.DS_Store
+target
+node_modules
+dist
+build
+test-ledger

sealed_bid_auction/Anchor.toml

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+[toolchain]
+package_manager = "yarn"
+
+[features]
+resolution = true
+skip-lint = false
+
+[programs.localnet]
+sealed_bid_auction = "CESv7Nbw2pLa81oA7J4ZxrmRYqywP3HqMCWfwdeErt8s"
+
+[registry]
+url = "https://api.apr.dev"
+
+[provider]
+cluster = "localnet"
+wallet = "~/.config/solana/id.json"
+
+[scripts]
+test = "yarn run ts-mocha -p ./tsconfig.json -t 1000000 \"tests/**/*.ts\""

sealed_bid_auction/Arcium.toml

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+[localnet]
+# number of nodes in the single cluster of the localnet
+nodes = 2
+# number of seconds to wait for the localnet to come online
+localnet_timeout_secs = 60
+# MPC backends this MXE supports (default: ["Cerberus"])
+# Supported values: "Cerberus", "Manticore", or both
+# Examples: backends = ["Cerberus"] or backends = ["Cerberus", "Manticore"]
+backends = ["Cerberus"]
+# Required when backends includes "Manticore"
+# Each path is copied to corresponding node's artifacts/manticore/computation_folder_N
+# Example: manticore_data_folders = ["./data/player-0", "./data/player-1"]
+# manticore_data_folders = []