initial book review schema

priv/repo/migrations/20250109091315_create_authors.exs

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+defmodule Wild.Repo.Migrations.CreateAuthors do
+  use Ecto.Migration
+
+  def change do
+    create table(:authors) do
+      add :name, :string
+      add :country, :string
+      add :bio, :string
+      add :year_born, :string
+      add :year_died, :string
+
+      timestamps(type: :utc_datetime)
+    end
+  end
+end

priv/repo/migrations/20250109091420_create_books.exs

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+defmodule Wild.Repo.Migrations.CreateBooks do
+  use Ecto.Migration
+
+  def change do
+    create table(:books) do
+      add :title, :string
+      add :blurb, :string
+      add :publication_year, :string
+      add :author_id, references(:authors, on_delete: :nothing)
+
+      timestamps(type: :utc_datetime)
+    end
+
+    create index(:books, [:author_id])
+  end
+end

priv/repo/migrations/20250109103126_create_book_reads.exs

@@ -0,0 +1,20 @@
+defmodule Wild.Repo.Migrations.CreateBookReads do
+  use Ecto.Migration
+
+  def change do
+    create table(:book_reads) do
+      add :rating, :integer
+      add :thoughts, :string
+      add :read_start, :utc_datetime
+      add :read_finish, :utc_datetime
+      add :progress, :integer
+      add :user_id, references(:users, on_delete: :nothing)
+      add :book_id, references(:books, on_delete: :nothing)
+
+      timestamps(type: :utc_datetime)
+    end
+
+    create index(:book_reads, [:user_id])
+    create index(:book_reads, [:book_id])
+  end
+end