Apply PR #1 URL normalization suggestions and accept schemeless URLs in FE validation

[Copilot]

This addresses the merged PR feedback on URL normalization edge cases and updates frontend validation so inputs without an explicit URI scheme are accepted. The flow now consistently normalizes user input before validation/storage while preserving HTTPS-only enforcement.

• Backend normalization hardening (src/api/worker.ts)

  • Trim original_url before processing.
  • Return 400 with URL is required for empty/whitespace-only input.
  • Keep scheme-prefix behavior only when no URI scheme is present, avoiding malformed double-scheme URLs.

• Frontend validation accepts schemeless input (src/client/lib/validation.ts)

  • Added normalizeUrlInput() to:
    • trim input
    • prepend https:// when scheme is missing
  • Applied normalization via z.preprocess(...) in urlSchema.
  • Kept HTTPS-only rule after normalization.

• Paste flow aligned with validation (src/client/routes/index.tsx)

  • Paste handler now normalizes pasted text and submits it directly.
  • Removed manual rejection path that previously blocked schemeless URLs.

• Example (normalization behavior)

  normalizeUrlInput(" example.com ")      // "https://example.com"
  normalizeUrlInput("HTTPS://example.com")// "HTTPS://example.com"
  normalizeUrlInput("http://example.com") // "http://example.com" (later rejected by HTTPS rule)

• screenshot

  • https://github.com/user-attachments/assets/f3c61bcc-7dec-43ee-a231-cd16a8d514cf

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Status	Name	Latest Commit	Updated (UTC)
✅ Deployment successful! View logs	url-shortener	31c7f25	Feb 14 2026, 03:02 PM

[arhen]

Fix this

[Copilot]

Pull request overview

This PR enhances URL input handling by implementing consistent normalization across frontend and backend, allowing users to submit URLs without explicit schemes (e.g., "example.com") while maintaining HTTPS-only enforcement. The changes address edge cases from a previous PR and improve the user experience by accepting schemeless URLs and normalizing them transparently.

Changes:

• Added normalizeUrlInput() function to trim input and prepend https:// when no URI scheme is present
• Integrated normalization into frontend validation via Zod preprocessing while keeping HTTPS-only enforcement
• Simplified paste handler to normalize all non-empty input and submit directly, removing manual error handling
• Hardened backend to trim URLs, reject empty/whitespace-only input, and avoid double-scheme URLs

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
src/client/lib/validation.ts	Added normalizeUrlInput function and integrated it into urlSchema via z.preprocess, maintains HTTPS-only validation
src/client/routes/index.tsx	Simplified paste handler to use normalizeUrlInput and rely on schema validation, removed manual error path, reorganized imports
src/api/worker.ts	Added URL trimming, empty string validation, and scheme-checking before normalization to prevent malformed URLs

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