feat: move migrations

Signed-off-by: kjuulh <contact@kjuulh.io>

crates/post3-server/migrations/20260226000001_initial.sql

@@ -0,0 +1,37 @@
+CREATE TABLE buckets (
+    id          UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    name        TEXT NOT NULL,
+    created_at  TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+CREATE UNIQUE INDEX idx_buckets_name ON buckets (name);
+
+CREATE TABLE objects (
+    id            UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    bucket_id     UUID NOT NULL REFERENCES buckets(id) ON DELETE CASCADE,
+    key           TEXT NOT NULL,
+    size          BIGINT NOT NULL,
+    etag          TEXT NOT NULL,
+    content_type  TEXT NOT NULL DEFAULT 'application/octet-stream',
+    created_at    TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+CREATE UNIQUE INDEX idx_objects_bucket_key ON objects (bucket_id, key);
+CREATE INDEX idx_objects_key_prefix ON objects (bucket_id, key text_pattern_ops);
+
+CREATE TABLE object_metadata (
+    id          UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    object_id   UUID NOT NULL REFERENCES objects(id) ON DELETE CASCADE,
+    meta_key    TEXT NOT NULL,
+    meta_value  TEXT NOT NULL
+);
+CREATE UNIQUE INDEX idx_metadata_object_key ON object_metadata (object_id, meta_key);
+CREATE INDEX idx_metadata_object_id ON object_metadata (object_id);
+
+CREATE TABLE blocks (
+    id            UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    object_id     UUID NOT NULL REFERENCES objects(id) ON DELETE CASCADE,
+    block_index   INT NOT NULL,
+    data          BYTEA NOT NULL,
+    block_size    INT NOT NULL
+);
+CREATE UNIQUE INDEX idx_blocks_object_index ON blocks (object_id, block_index);
+CREATE INDEX idx_blocks_object_id ON blocks (object_id);