fix(app): show friendly local plugin names in status popover

[LucasSantana-Dev]

Issue for this PR

Closes #12478

Type of change

• Bug fix
• New feature
• Refactor / code improvement
• Documentation

What does this PR do?

This fixes unreadable plugin names in the Status popover when plugins are configured with local file:// specifiers.

Changes included:

• parser utility to extract friendly display names from plugin specifiers
• Status popover plugin row now shows readable names for local plugins (filename or parent folder for index.*)
• keeps raw specifier visible (muted/truncated with full value on hover) for traceability

Why this works: users get understandable plugin labels without losing access to the exact configured source path.

How did you verify your code works?

• cd packages/app && bun run typecheck
• cd packages/app && bun test src/utils/plugin-spec.test.ts
• Playwright visual verification of status popover tabs (dark theme)

Screenshots / recordings

Checklist

• I have tested my changes locally
• I have not included unrelated changes in this PR

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