fix: windows cases failed issues

[dapan1121]

…y three cases failed on windows issues

Description

Issue(s)

• Close/close/Fix/fix/Resolve/resolve: Issue Link

Checklist

Please check the items in the checklist if applicable.

• Is the user manual updated?
• Are the test cases passed and automated?
• Is there no significant decrease in test coverage?

[gemini-code-assist]

Code Review

This pull request adjusts Windows timezone offset calculations to align with POSIX conventions and improves carriage return handling in the shell engine. A critical issue was identified in the test framework where a new return statement prevents the server's running state from being updated, which would cause subsequent operations like stopping the node to fail.

[Copilot]

Pull request overview

Fixes several Windows-specific failures by normalizing CRLF handling, adjusting Windows process start flow in tests, and aligning timezone offset sign conventions.

Changes:

• Strip \r cleanly when sourcing shell SQL files on Windows.
• Prevent startWithoutSleep() from falling through into non-Windows command execution on Windows.
• Negate Windows timezone offsets to match POSIX tm_gmtoff (east-positive) expectations in timestamp formatting/parsing.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 4 comments.

File	Description
tools/shell/src/shellEngine.c	Changes CR handling when reading sourced SQL lines (CRLF).
test/new_test_framework/utils/server/dnode.py	Adjusts Windows start path in startWithoutSleep() to avoid later use of cmd.
source/common/src/ttime.c	Fixes Windows timezone offset sign to match POSIX conventions; adds explanatory comments.

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[Copilot]

Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

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