Remove whole logic related to x / ! / ? merge symbols and add decoration N

[mguzmanm]

Fixes

• #87

Changes

Screenshots

Checklist

• 🤖 This change is covered by unit tests (if applicable).
• 🤹 Manual testing has been performed (if necessary).
• 🛡️ Security impacts have been considered (if relevant).
• 📖 Documentation updates are complete (if required).
• 🧠 Third-party dependencies and TPIP updated (if required).

[github-actions]

Dependency Review

✅ No vulnerabilities or license issues or OpenSSF Scorecard issues found.

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Scanned Files

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[qltysh]

Coverage Impact

⬆️ Merging this pull request will increase total coverage on main by 0.23%.

Modified Files with Diff Coverage (3)

Rating	File	% Diff	Uncovered Line #s
	.../solution-outline/tree-structure/solution-outline-file-item.ts	100.0%
	...ution-outline/tree-structure/solution-outline-project-items.ts	100.0%
	src/views/solution-outline/treeview-decoration-provider.ts	100.0%
	Total	100.0%

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[Copilot]

Pull request overview

This PR updates the Solution Outline UI to remove the previous merge-status symbol/tooltip logic ((?), (!), (X)) and instead indicate merge-relevant files via a dedicated VS Code file decoration badge (N), aligning with Issue #87’s request to move away from (?) markers.

Changes:

• Added a new file decoration (N) for items with the merge feature/context and defined its priority relative to excluded/pack-sourced decorations.
• Removed merge-status symbol/tooltip generation logic from solution-outline tree building utilities and related builders.
• Updated/expanded unit tests to reflect the new decoration behavior and the removal of merge-status descriptions/tooltips.

Reviewed changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
src/views/solution-outline/treeview-decoration-provider.ts	Adds merge file decoration (N) and prioritization logic.
src/views/solution-outline/treeview-decoration-provider.test.ts	Adds tests for merge decoration and decoration priority ordering.
src/views/solution-outline/tree-structure/solution-outline-utils.ts	Removes merge-status symbol/tooltip helper functions.
src/views/solution-outline/tree-structure/solution-outline-tree.ts	Removes merge-status description/tooltip logic at project level.
src/views/solution-outline/tree-structure/solution-outline-project-items.ts	Removes merge-status aggregation/tooltip logic at component grouping level.
src/views/solution-outline/tree-structure/solution-outline-hardware-item.test.ts	Updates test expectations by removing merge-status tooltip assertion.
src/views/solution-outline/tree-structure/solution-outline-file-item.ts	Stops setting merge-status description/tooltip on file nodes; keeps merge context.
src/views/solution-outline/tree-structure/solution-outline-file-item.test.ts	Updates expectations to no longer require merge-status description/tooltip.
package.json	Renames the merge command title to “Open Merge View”.

Comments suppressed due to low confidence (1)

src/views/solution-outline/tree-structure/solution-outline-project-items.ts:33

• _lastPrioritizedComponentList and its public getter no longer appear to be referenced anywhere in the repo after the merge-status description logic was removed. Consider removing both to avoid leaving a stale/always-empty API surface.

export class ProjectItemsBuilder extends SolutionOutlineItemBuilder {
    private readonly _lastPrioritizedComponentList: COutlineItem[] = [];

    public get lastPrioritizedComponentList(): COutlineItem[] {
        return this._lastPrioritizedComponentList;
    }

[edriouk]

LGTM