Remove unused interfaces and classes from TestAssembly, including ISe…

[david-driscoll]

…rvice, Service, and related types. Delete TestAssembly.csproj as it is no longer needed.

[codacy-production]

Not up to standards ⛔

🔴 Issues 2 critical · 22 high · 1 medium · 3 minor

Alerts:
⚠ 28 issues (≤ 0 issues of at least minor severity)

Results:
28 new issues

Category	Results
BestPractice	1 medium 1 minor
ErrorProne	2 critical
Security	9 high
CodeStyle	2 minor
Performance	13 high

View in Codacy

🟢 Metrics -26 complexity · -4 duplication

Metric	Results
Complexity	-26
Duplication	-4

View in Codacy

AI Reviewer: first review requested successfully. AI can make mistakes. Always validate suggestions.

_{TIP This summary will be updated as you push new changes.}