feat(skills-next): add flutter SDK references

[evanpurkhiser]

Direct LLM port of the existing flutter SDK skill into the skills-next per-SDK reference layout under skills-next/references/sdks/flutter/. This content has NOT been reviewed at all — it is a machine-generated port of the existing SDK skill, and every file should be treated as unverified.

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

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[cursor]

Inverted navigation trace fix

Medium Severity

The troubleshooting row for traces not connecting across navigations tells readers to set enableNewTraceOnNavigation to true, which starts a new trace on each navigation and reduces continuity. Keeping it false (the 9.19+ default) is what preserves connected traces.

 

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[evanpurkhiser]

Automated fixes pushed addressing the review feedback on this PR:

• logging.md: removed the orphaned }); (Dart syntax error); fixed the logging-package _logger.info('msg', {map}) misuse (a Map was passed where an error object is expected); and converted every direct Sentry.logger.* snippet to the real named attributes: parameter wrapping values with SentryAttribute.string/int/double/bool.

Note: the bot's Sentry.logger.warn() -> warning() suggestion is a false positive. Verified against sentry-dart source (SentryLogger interface, DefaultSentryLogger, and the unit tests): warn is the real method and warning does not exist, so it was left as-is.