test(router): added useParams tests for optional and catch-all route segments

[tmdeveloper007]

Summary of What Has Been Done

Added with 6 test cases for useParams with catch-all and standard route segments.

Changes Made

• Created with 6 test cases:
  • Catch-all : /docs/a/b/c captures path="a/b/c"
  • Static route alongside catch-all: /docs returns empty params
  • Catch-all with single segment: /files/readme.md captures rest="readme.md"
  • Regular param alongside catch-all: /user/[id]/[...rest] captures both
  • Route without params: /about returns empty params object
  • Required param without optional syntax: /item/[id] works correctly

Impact it Made

• Documents expected behavior for catch-all route parameters
• Prevents regressions when route matching logic changes
• Covers the important catch-all routing pattern used in real-world apps

Closes Karanjot786#3292.

Note: please assign this PR to the tmdeveloper007 account.