fix(shacl-parser): address Sonar reduce warnings

[qplevier]

Summary

• add an explicit initial value to reduce calls in parseAll and parseAllAndGroup
• replace direct reducer function references with inline callbacks
• keep existing merge behavior by reducing from createEmptyShape()

Motivation

This addresses SonarQube findings:

• typescript:S6959 (Array.reduce should include an initial value)
• typescript:S7727 (Function references should not be passed directly to iterator methods)

Testing

• not run (logic-only TypeScript change)

Checklist [optional]

Just a friendly reminder to update any of the following, if applicable:

• changelog
• readme
• documentation
• version

Summary by Sourcery

Bug Fixes:

• Prevent potential runtime or analysis issues in SHACL shape aggregation by providing an explicit initial value to reduce operations in parseAll and parseAllAndGroup.

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

Refactors SHACLParser reduction logic in parseAll and parseAllAndGroup to satisfy SonarQube rules by adding explicit initial values and inlining the reducer callbacks while preserving existing shape merge behavior.

File-Level Changes

Change	Details	Files
Update SHACLParser reduce calls to use explicit initial accumulator values and inline reducer callbacks while preserving merge semantics.	Change parseAll to reduce loaded shapes using an inline callback that delegates to mergeShapes and starts from createEmptyShape() as the initial accumulator. Change parseAllAndGroup to build the combined shape using the same inline reduce callback with createEmptyShape() as the initial accumulator before grouping.	src/components/ShaclForm/Parser/SHACLParser.ts

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[kburger]

✅ Snyk checks have passed. No issues have been found so far.

Status	Scan Engine	Critical	High	Medium	Low	Total (0)
✅	Open Source Security	0	0	0	0	0 issues

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[sourcery-ai]

Hey - I've left some high level feedback:

• Using this.createEmptyShape() as the initial accumulator changes the reduction semantics compared to the previous implementation; please double-check that createEmptyShape() is a true identity for mergeShapes, or consider handling the empty-array case separately (e.g., early-return or slice(1) pattern) to preserve behavior for non-empty collections while still satisfying the Sonar rules.

Prompt for AI Agents

Please address the comments from this code review:

## Overall Comments
- Using `this.createEmptyShape()` as the initial accumulator changes the reduction semantics compared to the previous implementation; please double-check that `createEmptyShape()` is a true identity for `mergeShapes`, or consider handling the empty-array case separately (e.g., early-return or `slice(1)` pattern) to preserve behavior for non-empty collections while still satisfying the Sonar rules.

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