init: archlens — architecture diagram generator

Hex arch + DDD, tree-sitter parsing, Mermaid/ASCII output.
Supports Rust + Python. 92 tests. CI, diff, --check for staleness detection.

crates/application/tests/fakes/mod.rs

@@ -0,0 +1,9 @@
+mod diagram_renderer;
+mod file_discovery;
+mod output_writer;
+mod source_analyzer;
+
+pub use diagram_renderer::FakeDiagramRenderer;
+pub use file_discovery::FakeFileDiscovery;
+pub use output_writer::FakeOutputWriter;
+pub use source_analyzer::FakeSourceAnalyzer;