refactor: remove placeholder seed_sets from create-if-missing test specs

Author: mikkeldamsgaard

CHANGELOG.md

@@ -7,6 +7,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Changed
+- Removed placeholder `seed_sets` from create-if-missing integration test YAML files; phases with only `create_if_missing` no longer need empty seed sets (`seed_sets` was already optional via `#[serde(default)]`)
+
 ### Added
 - Integration tests with docker-compose for end-to-end testing against real Postgres 16, MySQL 8.0, and nginx services (`tests/integration_test.rs`): wait-for TCP/HTTP/timeout/multiple targets, render template, fetch HTTP, exec command, seed PostgreSQL and MySQL with cross-table reference verification, create database/schema, idempotency, and reset mode
 - Additional create-if-missing integration tests: 2 PostgreSQL and 2 MySQL tests using known non-existing database names (`initium_noexist_alpha`, `initium_noexist_beta`) to verify database creation, existence checks, and idempotent re-runs

tests/input/create-nonexistent-db-alpha-mysql.yaml

@@ -8,8 +8,3 @@ phases:
     order: 1
     database: initium_noexist_alpha
     create_if_missing: true
-    seed_sets:
-      - name: placeholder
-        tables:
-          - table: products
-            rows: []

tests/input/create-nonexistent-db-alpha-postgres.yaml

@@ -8,8 +8,3 @@ phases:
     order: 1
     database: initium_noexist_alpha
     create_if_missing: true
-    seed_sets:
-      - name: placeholder
-        tables:
-          - table: departments
-            rows: []

tests/input/create-nonexistent-db-beta-mysql.yaml

@@ -8,8 +8,3 @@ phases:
     order: 1
     database: initium_noexist_beta
     create_if_missing: true
-    seed_sets:
-      - name: placeholder
-        tables:
-          - table: products
-            rows: []

tests/input/create-nonexistent-db-beta-postgres.yaml

@@ -8,8 +8,3 @@ phases:
     order: 1
     database: initium_noexist_beta
     create_if_missing: true
-    seed_sets:
-      - name: placeholder
-        tables:
-          - table: departments
-            rows: []