sqlc: static address migrations, models, queries

loopdb/sqlc/migrations/000007_static_address.down.sql

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+DROP TABLE IF EXISTS static_addresses;

loopdb/sqlc/migrations/000007_static_address.up.sql

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+-- static_address stores the static loop-in addresses that clients
+-- cooperatively created with the server.
+CREATE TABLE IF NOT EXISTS static_addresses (
+    -- id is the auto-incrementing primary key for a static address.
+    id INTEGER PRIMARY KEY,
+
+    -- client_pubkey is the client side public taproot key that is used to
+    -- construct the 2-of-2 MuSig2 taproot output that represents the static
+    -- address.
+    client_pubkey BYTEA NOT NULL,
+
+    -- server_pubkey is the server side public taproot key that is used to
+    -- construct the 2-of-2 MuSig2 taproot output that represents the static
+    -- address.
+    server_pubkey BYTEA NOT NULL,
+
+    -- expiry denotes the CSV delay at which funds at a specific static address
+    -- can be swept back to the client.
+    expiry INT NOT NULL,
+
+    -- client_key_family is the key family of the client public key from the
+    -- client's lnd wallet.
+    client_key_family INT NOT NULL,
+
+    -- client_key_index is the key index of the client public key from the
+    -- client's lnd wallet.
+    client_key_index INT NOT NULL,
+
+    -- pkscript is the witness program that represents the static address. It is
+    -- unique amongst all static addresses.
+    pkscript BYTEA NOT NULL UNIQUE,
+
+    -- protocol_version is the protocol version that the swap was created with.
+    -- Note that this version is not upgraded if the client upgrades or
+    -- downgrades their protocol version for static address outputs already in
+    -- use.
+    protocol_version INTEGER NOT NULL
+);

loopdb/sqlc/queries/static_addresses.sql

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+-- name: AllStaticAddresses :many
+SELECT * FROM static_addresses;
+
+-- name: GetStaticAddress :one
+SELECT * FROM static_addresses
+WHERE pkscript=$1;
+
+-- name: CreateStaticAddress :exec
+INSERT INTO static_addresses (
+    client_pubkey,
+    server_pubkey,
+    expiry,
+    client_key_family,
+    client_key_index,
+    pkscript,
+    protocol_version
+) VALUES (
+             $1,
+             $2,
+             $3,
+             $4,
+             $5,
+             $6,
+             $7
+         );