Replace PostgreSQL array types with JSON serialization for MariaDB compatibility

[Copilot]

The apiserver models used PostgreSQL-specific array types (pq.StringArray, pq.Int32Array) that are incompatible with MariaDB.

Changes

Models

• Frequency.Days, Frequency.Months: pq.Int32Array → []int32
• AppToken.Scopes: pq.StringArray → []string
• GORM tags: type:integer[] / type:text[] → serializer:json;type:json

Repositories

• Removed github.com/lib/pq imports
• Updated convertScopesToStringArray to return native []string
• Updated test fixtures to use native slice types

Example

Before:

type AppToken struct {
    Scopes pq.StringArray `gorm:"type:text[]"`
}

After:

type AppToken struct {
    Scopes []string `gorm:"serializer:json;type:json"`
}

GORM's JSON serializer handles cross-database compatibility automatically, storing arrays as JSON in both MySQL/MariaDB and SQLite.

Original prompt

Scan the models code in the apiserver for instances of code that will not work with MariaDB. For example some data types like pq.StringArray
Replace those types with platform agnostic types and make any necessary code changes for these to work in the app code. If you need to make code changes to the app logic only make concise code changes and do not add any new comments

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[Copilot]

Pull Request Overview

This PR removes PostgreSQL-specific data types (pq.StringArray and pq.Int32Array) from the models layer and replaces them with platform-agnostic Go slice types ([]string and []int32) to ensure MariaDB compatibility.

Key Changes:

• Replaced pq.StringArray with []string and pq.Int32Array with []int32 in model definitions
• Updated GORM tags to use serializer:json with type:json for database storage
• Removed pq package imports from user and recurrence models and related repository code

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 2 comments.

File	Description
apiserver/internal/models/user.go	Replaced pq.StringArray with []string for AppToken.Scopes field and updated GORM tags
apiserver/internal/models/recurrence.go	Replaced pq.Int32Array with []int32 for Frequency.Days and Frequency.Months fields and updated GORM tags
apiserver/internal/repos/user/user.go	Removed unnecessary pq.StringArray conversion in convertScopesToStringArray function
apiserver/internal/repos/user/user_test.go	Updated test data to use []string instead of pq.StringArray

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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