Condense Database Migrations (#17103)

* Condense Database Migrations

Condenses the Database Migrations into a new initial schema.
Also adds some instructions to the Database Readme for existing setups.

* Update readme/delete changed migrations since pr creation

* Reworks a bit how the previous migrations are handled and updates the instructions accordingly

* Expand the readme with baseline/migrate

---------

Co-authored-by: Werner <Arrow768@users.noreply.github.com>

SQL/migrate-2017/V038__ccia_reports.sql

@@ -0,0 +1,35 @@
+--
+-- Adds tables to store ccia interviews
+--
+
+CREATE TABLE `ss13_ccia_reports` (
+	`id` INT(11) NOT NULL AUTO_INCREMENT,
+	`report_date` DATE NOT NULL,
+	`title` VARCHAR(200) NOT NULL COLLATE 'utf8mb4_unicode_ci',
+	`status` ENUM('new','approved','rejected','completed') NOT NULL COLLATE 'utf8mb4_unicode_ci',
+	`created_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+	`updated_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+	`deleted_at` DATETIME NULL DEFAULT NULL,
+	PRIMARY KEY (`id`)
+)
+COLLATE='utf8mb4_unicode_ci'
+ENGINE=InnoDB
+;
+
+CREATE TABLE `ss13_ccia_reports_transcripts` (
+	`id` INT(11) NOT NULL AUTO_INCREMENT,
+	`report_id` INT(11) NOT NULL,
+	`character_id` INT(11) NOT NULL,
+	`interviewer` VARCHAR(100) NOT NULL COLLATE 'utf8mb4_unicode_ci',
+	`text` LONGTEXT NOT NULL COLLATE 'utf8mb4_unicode_ci',
+	`created_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+	`updated_at` DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
+	`deleted_at` DATETIME NULL DEFAULT NULL,
+	PRIMARY KEY (`id`),
+	INDEX `report_id` (`report_id`),
+	INDEX `character_id` (`character_id`),
+	CONSTRAINT `report_id` FOREIGN KEY (`report_id`) REFERENCES `ss13_ccia_reports` (`id`) ON UPDATE CASCADE ON DELETE CASCADE
+)
+COLLATE='utf8mb4_unicode_ci'
+ENGINE=InnoDB
+;