Rename AnalysisInfo field to SecretParts on detectors.Result

[mcastorina]

Description:

Mechanical rename of the detectors.Result.AnalysisInfo field to SecretParts to prepare for its replacement for Raw.

Checklist:

• Tests passing (make test-community)?
• Lint passing (make lint this requires golangci-lint)?

---

Note

Medium Risk
Broad mechanical rename of a core struct field used across many detectors and tests; risk is mainly compile/runtime breakage for downstream code expecting AnalysisInfo and any analyzers/output paths not fully updated.

Overview
Renames the detectors.Result field used to pass analyzer inputs from AnalysisInfo to SecretParts, updating the struct comment to reflect multi-part credential components.

Updates a large set of detectors to populate SecretParts (instead of AnalysisInfo) on verified results, and adjusts integration/unit tests to ignore/clear SecretParts accordingly.

Tweaks plain-text output (pkg/output/plain.go) to show the analysis hint based on SecretParts being present for verified results.

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