feat: add SQL migration for replication metadata (#22288)

sqlite/migrations/0004_create_replications_table.sql

@@ -0,0 +1,25 @@
+-- The user_version should match the "000X" from the file name
+-- Ex: 0001_create_notebooks_table should have a user_verison of 1
+PRAGMA user_version=4;
+
+CREATE TABLE replications
+(
+    id                       VARCHAR(16) NOT NULL PRIMARY KEY,
+    org_id                   VARCHAR(16) NOT NULL,
+    name                     TEXT        NOT NULL,
+    description              TEXT,
+    remote_id                VARCHAR(16) NOT NULL,
+    local_bucket_id          VARCHAR(16) NOT NULL,
+    remote_bucket_id         VARCHAR(16) NOT NULL,
+    max_queue_size_bytes     INTEGER     NOT NULL,
+    current_queue_size_bytes INTEGER     NOT NULL,
+    latest_response_code     INTEGER,
+    latest_error_message     TEXT,
+
+    CONSTRAINT replications_uniq_orgid_name UNIQUE (org_id, name),
+    FOREIGN KEY (remote_id) REFERENCES remotes(id) ON DELETE CASCADE
+);
+
+-- Create indexes on lookup patterns we expect to be common
+CREATE INDEX idx_local_bucket_id_per_org ON replications (org_id, local_bucket_id);
+CREATE INDEX idx_remote_id_per_org ON replications (org_id, remote_id);