feat: run configured console commands on alert

[clawd131662]

What

Adds an alert-commands config key so the honeypot can react, not just report. Whenever an alert fires, each listed command is dispatched as the console sender, in order.

alert-commands:
- jail ${Player}
- tell ${Player} 你踩到陷阱了

Details

• Reuses the same placeholders as alert-message: ${Player}, ${Block}, ${onClicked}, ${x}, ${y}, ${z}, ${world}.
• Placeholder substitution is extracted into a shared format(...) helper used by both the console message and the commands.
• Commands run after the console message, in list order, via dispatchCommand as the console sender (no leading /). The listeners are synchronous, so dispatch is on the main thread.
• Held as a List<String> (not a Set like the other list keys) to preserve execution order and allow duplicates.
• Empty by default → existing behavior is unchanged. The filter chain is untouched: commands only fire under the exact same conditions that produce an alert.
• Color codes (&) are not translated for commands (only for the console message).

Notes

• No color translation for commands — flag if tell-style commands should support & codes.
• chore: bump version to 1.4-beta.1 is included so the beta release jar names correctly.

Test plan

• ./gradlew build passes (JDK 21); jar builds as ResidenceAlert-1.4-beta.1.jar and plugin.yml renders version: 1.4-beta.1.
• No automated tests in this repo (detector logic is unchanged; only an additive side effect on the existing alert path).

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