chore: add DeepSource configuration

[2233admin]

Summary

• Add repository-local DeepSource configuration.
• Enabled analyzers: rust.
• Exclude generated, dependency, and build output paths to keep first-run findings actionable.

Validation

• Parsed .deepsource.toml with Python tomllib.
• Existing CI/CodeQL/Dependabot configuration is unchanged.

Follow-up

• Enable 2233admin/qqcli-rs in the DeepSource Dashboard after this PR merges.
• Review first analysis and tune exclude_patterns if generated files dominate findings.

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Run ID: 2c195a9f-aa4d-4223-953d-bcc4ef43d539

📥 Commits

Reviewing files that changed from the base of the PR and between 44366d8 and 30ba901.

📒 Files selected for processing (1)

• .deepsource.toml

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[gemini-code-assist]

Code Review

This pull request adds a .deepsource.toml configuration file to enable DeepSource's Rust analyzer. The review feedback suggests specifying an explicit minimum supported Rust version (msrv = '1.81') to align with the project's configuration, and correcting the cyclomatic_complexity_threshold value to an integer instead of a string.

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[gemini-code-assist]

The project's Cargo.toml specifies rust-version = "1.81". Setting msrv to "1.81" instead of "stable" ensures that DeepSource does not suggest language features or APIs that are incompatible with the project's minimum supported Rust version as the Rust stable channel advances.

Suggested change

	msrv = "stable"
	msrv = "1.81"

[gemini-code-assist]

DeepSource's cyclomatic_complexity_threshold expects an integer value (representing the maximum cyclomatic complexity allowed for a function, with a default of 15). Providing a string like "high" may be invalid or ignored by the analyzer. Consider specifying an integer threshold instead.

Suggested change

	cyclomatic_complexity_threshold = "high"
	cyclomatic_complexity_threshold = 15