fix: parse SSO failure errorCode

[MohamadJaara]

Goal

Fix SSO failure callbacks being mapped to an unknown error because Android and Kalium used different query parameter names.

Kalium generates the callback with errorCode in SSOUtil.generateErrorRedirect and QUERY_ERROR, while DeepLinkProcessor previously read error.

Reproduction

1. Start an SSO login that uses redirect callbacks.
2. Let the SSO backend return a failure callback generated from the Kalium template: wire://sso-login/failure/?errorCode=$label.
3. Android does not find error and maps the callback to Unknown.

Change

• Treat errorCode as the canonical Android failure parameter to match Kalium.
• Continue accepting error as a legacy fallback for existing or external callbacks.
• Cover the contract by passing the real compiled Kalium-generated failure redirect through Android Uri and DeepLinkProcessor.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 52.26%. Comparing base (e73dcbe) to head (588feff).
⚠️ Report is 1 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #5244   +/-   ##
========================================
  Coverage    52.26%   52.26%           
========================================
  Files          745      745           
  Lines        25897    25900    +3     
  Branches      4235     4237    +2     
========================================
+ Hits         13534    13537    +3     
  Misses       11066    11066           
  Partials      1297     1297           

Files with missing lines	Coverage Δ
...om/wire/android/util/deeplink/DeepLinkProcessor.kt	78.08% <100.00%> (+0.45%)	⬆️

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[github-actions]

Test Results

2 641 tests  +2   2 641 ✅ +2   1m 38s ⏱️ +8s
  337 suites +1       0 💤 ±0 
  337 files   +1       0 ❌ ±0 

Results for commit 588feff. ± Comparison against base commit e73dcbe.

[github-actions]

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