Fix ToolInstallationDescriptor.getGlobalBinPath() and standardize ObjectMapper usage

[Copilot]

Code review identified a bug where getGlobalBinPath() returned binDir instead of globalBinDir, plus inconsistent ObjectMapper instantiation patterns.

Bug Fix

• ToolInstallationDescriptor.getGlobalBinPath(): Was returning wrong field

// Before (incorrect)
public Path getGlobalBinPath() {
    return asPath(binDir);
}

// After (correct)
public Path getGlobalBinPath() {
    return asPath(globalBinDir);
}

Code Consistency

• AbstractToolListCommand, AbstractToolGetCommand: Replaced new ObjectMapper() with JsonHelper.getObjectMapper() to match existing pattern in AbstractToolInstallCommand and AbstractToolUninstallCommand

Merge Conflict Notes

5 files will conflict when merging to dev/v3.x:

File	Resolution
AbstractFoDDastAutomatedScanSetupCommand.java	Combine: SLF4J (dev/v3.x) + TypeReference import (PR)
FoDReleaseAssessmentTypeHelper.java	Combine: SLF4J (dev/v3.x) + Predicate import + FcliSimpleException (PR)
ci.yaml (generic/fod/ssc)	Both changes target different sections, straightforward merge

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