fix(web): redact malformed URL secrets in MCP validator

[JSONbored]

Motivation

• Fix a regression where malformed url strings or URL-like args were returned unchanged by redactUrlValue() and could leak recognizable secrets into reportText and fixedConfigText.

Description

• Change redactUrlValue() to fall back to redactEnvValue("url", value) when new URL(value) throws so malformed URL-like values are still subject to generic secret-pattern redaction.
• Ensure the fallback reports a non-zero redactedCount when the fallback actually redacts content.
• Add a regression test it("redacts malformed URL-like values that contain secrets") in tests/mcp-config-validator.test.ts that exercises a malformed top-level url and a malformed URL-like args entry.
• Preserve existing behavior for valid URLs and URL parsing paths so previously-covered cases remain redacted via the URL-specific logic.

Testing

• Ran pnpm exec vitest run tests/mcp-config-validator.test.ts and all tests passed (12 tests).
• Ran git diff --check to validate whitespace/formatting and it reported no issues.

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Codex Task

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Repository UI (base), Organization UI (inherited)

Review profile: CHILL

Plan: Pro

Run ID: f8acac06-d094-4798-ab69-de15bebfc934

📥 Commits

Reviewing files that changed from the base of the PR and between b990a4f and e23eecc.

📒 Files selected for processing (2)

• apps/web/src/lib/mcp-config-validator.ts
• tests/mcp-config-validator.test.ts

✨ Finishing Touches

✨ Simplify code

• Create PR with simplified code
• Commit simplified code in branch codex/propose-fix-for-mcp-url-redaction-issue

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