[Feature][Connector-V2] Jdbc mysql support read tinyint(1) to byte(tinyint)

[Hisoka-X]

Purpose of this pull request

Before this pr, when SeaTunnel read tinyint(1) from MySQL. It will be convert to boolean type.
This pr introduce new option named int_type_narrowing. By set int_type_narrowing to false, let SeaTunnel read tinyint(1) as SeaTunnel Byte type (same as tinyint).

Does this PR introduce any user-facing change?

no

How was this patch tested?

add new test.

Check list

• If any new Jar binary package adding in your PR, please add License Notice according
  New License Guide
• If necessary, please update the documentation to describe the new feature. https://github.com/apache/seatunnel/tree/dev/docs
• If you are contributing the connector code, please check that the following files are updated:
  1. Update plugin-mapping.properties and add new connector information in it
  2. Update the pom file of seatunnel-dist
  3. Add ci label in label-scope-conf
  4. Add e2e testcase in seatunnel-e2e
  5. Update connector plugin_config

[Copilot]

Pull Request Overview

This PR adds an int_type_narrowing option to let SeaTunnel read MySQL TINYINT(1) as a byte instead of a boolean when set to false.

• Introduce and wire int_type_narrowing through JdbcOptions, JdbcConnectionConfig, source factory, catalog utils, converters, mappers, and catalog implementations
• Update integration tests, SQL/CONN fixture files, and unit tests to cover both boolean and byte mapping
• Enhance documentation (EN/ZH) to describe the new option

Reviewed Changes

Copilot reviewed 20 out of 20 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
connector-jdbc/src/main/java/.../JdbcOptions.java	Add INT_TYPE_NARROWING option key and description
connector-jdbc/src/main/java/.../JdbcConnectionConfig.java	New intTypeNarrowing field, builder, and config mapping
connector-jdbc/src/main/java/.../MySqlTypeConverter.java	Adjust constructor overloads and branch on intTypeNarrowing
connector-jdbc/src/main/java/.../MySqlCatalog.java & AbstractJdbcCatalog.java	Pass tinyInt1isBit=false when narrowing disabled
connector-jdbc/src/main/java/.../JdbcSourceFactory.java	Include INT_TYPE_NARROWING in optionRule()
connector-jdbc/.../MySqlTypeMapperTest.java & JdbcMysqlMultipleTablesIT.java	Add unit and integration tests for both mapping modes
seatunnel-e2e/.../*.conf & .sql	Update queries and table definitions to use new c_tinyint_1 column
docs/zh/connector-v2/source/Mysql.md & docs/en/.../Mysql.md, Jdbc.md	Document int_type_narrowing and its effects

Comments suppressed due to low confidence (1)

docs/en/connector-v2/source/Mysql.md:94

• [nitpick] You have duplicated int_type_narrowing docs here and in Jdbc.md; consider moving shared option descriptions into a common section to reduce duplication and maintain consistency.

| int_type_narrowing                         | Boolean    | No       | true            | Int type narrowing, if true, the tinyint(1) type will be narrowed to the boolean type if without loss of precision. Support for MySQL at now. |

[Copilot]

[nitpick] Consider rephrasing the description to "Currently supported for MySQL only." to improve clarity and correct grammar.

[Copilot]

[nitpick] The constructors for MySqlTypeConverter (no-arg, single-arg, two-arg) are interleaved; grouping and ordering them together can improve readability.