fix(ui): restore tool selection feedback in onboarding and render selected tool names in review

[whtssub]

Normalize server-name matching for Step 3 checkboxes and use unique per-tool keys in Step 4 to fix duplicate key issues.

refs #1614

I have rendered/tested the updated docker image locally and found consistent desired results. Refer the below images.

[Copilot]

Pull request overview

This PR fixes a blocker bug where users cannot select tools in the UI quick agent builder wizard's tool selection step. The issue was caused by server name format mismatches during tool selection comparison. Additionally, the PR improves the tool feedback in the review step by displaying individual tool names instead of just server names, and fixes duplicate key warnings in the UI.

Changes:

• Normalize server-name matching in ToolSelectionStep to handle both "namespace/name" and plain name formats using a new serverNamesMatch utility function
• Improve ReviewStep rendering to display individual tool names per tool and generate unique keys per tool to eliminate React duplicate key warnings

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
ui/src/components/onboarding/steps/ToolSelectionStep.tsx	Imports and uses serverNamesMatch function to properly match tools when server names may be in different formats (namespace/name vs plain name)
ui/src/components/onboarding/steps/ReviewStep.tsx	Refactors tool rendering to show individual tool names instead of just server names, uses flatMap for better data structure handling, and generates unique keys combining server name, tool name, and tool index to fix duplicate key issues

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