[OPIK-309] Add prompt library tables (#516)

* [OPIK-309] Add prompt library tables

* Make migration safer

* Change unique key

* Update 000004_add_prompt_library_tables.sql

* Update 000004_add_prompt_library_tables.sql

* Update 000004_add_prompt_library_tables.sql

apps/opik-backend/src/main/resources/liquibase/db-app-state/migrations/000004_add_prompt_library_tables.sql

@@ -0,0 +1,32 @@
+--liquibase formatted sql
+--changeset thiagohora:add_prompt_library_tables
+
+CREATE TABLE IF NOT EXISTS prompts (
+    id CHAR(36) NOT NULL,
+    name VARCHAR(255) NOT NULL,
+    description VARCHAR(255),
+    created_at TIMESTAMP(6) NOT NULL DEFAULT CURRENT_TIMESTAMP(6),
+    created_by VARCHAR(100) NOT NULL DEFAULT 'admin',
+    last_updated_at TIMESTAMP(6) NOT NULL DEFAULT CURRENT_TIMESTAMP(6) ON UPDATE CURRENT_TIMESTAMP(6),
+    last_updated_by VARCHAR(100) NOT NULL DEFAULT 'admin',
+    workspace_id VARCHAR(150) NOT NULL,
+    CONSTRAINT `prompts_pk` PRIMARY KEY (id),
+    CONSTRAINT `prompts_workspace_id_name_uk` UNIQUE (workspace_id, name)
+);
+
+CREATE TABLE IF NOT EXISTS prompt_versions (
+    id CHAR(36) NOT NULL,
+    prompt_id CHAR(36) NOT NULL,
+    commit VARCHAR(7) NOT NULL,
+    template MEDIUMTEXT NOT NULL,
+    created_at TIMESTAMP(6) NOT NULL DEFAULT CURRENT_TIMESTAMP(6),
+    created_by VARCHAR(100) NOT NULL DEFAULT 'admin',
+    last_updated_at TIMESTAMP(6) NOT NULL DEFAULT CURRENT_TIMESTAMP(6) ON UPDATE CURRENT_TIMESTAMP(6),
+    last_updated_by VARCHAR(100) NOT NULL DEFAULT 'admin',
+    workspace_id VARCHAR(150) NOT NULL,
+    CONSTRAINT `prompt_versions_pk` PRIMARY KEY (id),
+    CONSTRAINT `prompt_versions_prompt_id_version_uk` UNIQUE (workspace_id, prompt_id, commit)
+);
+
+--rollback DROP TABLE IF EXISTS prompt_versions;
+--rollback DROP TABLE IF EXISTS prompts;