fix: make request URI building idempotent

[overcat]

No description provided.

[Copilot]

Pull request overview

This PR updates Horizon request builder URL construction to be idempotent, preventing path segments from being duplicated when buildUri() (and therefore execute()) is called multiple times on the same builder instance.

Changes:

• Update RequestBuilder#buildUri() to avoid duplicating path segments across repeated invocations.
• Add a regression test ensuring repeated buildUri() calls produce the same URI.
• Document the fix in CHANGELOG.md.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
src/test/java/org/stellar/sdk/requests/AccountsRequestBuilderTest.java	Adds a regression test asserting repeated buildUri() calls don’t change the generated URL.
src/main/java/org/stellar/sdk/requests/RequestBuilder.java	Changes URI construction logic to rebuild from the server base each time, aiming for idempotency.
CHANGELOG.md	Notes the idempotent URL generation fix under “Pending”.

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.

[Copilot]

Pull request overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated no new comments.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 82.65%. Comparing base (0f97df3) to head (76e6f08).

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #798      +/-   ##
============================================
+ Coverage     82.63%   82.65%   +0.01%     
- Complexity     1615     1617       +2     
============================================
  Files           232      232              
  Lines          5938     5937       -1     
  Branches        657      657              
============================================
  Hits           4907     4907              
  Misses          659      659              
+ Partials        372      371       -1     

Files with missing lines	Coverage Δ
.../java/org/stellar/sdk/requests/RequestBuilder.java	79.68% <100.00%> (+1.56%)	⬆️
.../main/java/org/stellar/sdk/requests/SSEStream.java	81.37% <100.00%> (-2.13%)	⬇️

... and 1 file with indirect coverage changes

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[Copilot]

Pull request overview

Copilot reviewed 5 out of 5 changed files in this pull request and generated no new comments.