chore(tools): add understand-anything configuration files

.understand-anything/.understandignore

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+# .understandignore — patterns for files/dirs to exclude from analysis
+# Syntax: same as .gitignore (globs, # comments, ! negation, trailing / for dirs)
+# Lines below are suggestions — uncomment to activate.
+# Use ! prefix to force-include something excluded by defaults.
+#
+# Built-in defaults (always excluded unless negated):
+#   node_modules/, .git/, dist/, build/, obj/, *.lock, *.min.js, etc.
+#
+
+# --- From .gitignore (uncomment to exclude) ---
+
+/.omc
+/.omc/state
+
+# Generated plugin lockfile — pinned versions only, no architecture signal
+lazy-lock.json
+
+# --- Test file patterns (uncomment to exclude) ---
+
+# JS / TS
+# *.test.*
+# *.spec.*
+# *.snap
+# C# / .NET
+# **/*Tests.cs
+# **/*Test.cs
+# **/*Fixture.cs
+# **/*.Tests.csproj
+# Java / Kotlin
+# **/src/test/**
+# **/*Test.java
+# **/*IT.java
+# **/*Spec.kt
+# Go
+# **/*_test.go
+# C++
+# **/*_test.cc
+# **/*_test.cpp
+# **/*_test.cxx
+# **/*Test.cc
+# **/*Test.cpp
+# **/*_unittest.cc
+# **/*_unittest.cpp
+# **/*_browsertest.cc
+# **/*_benchmark.cc
+# **/*Benchmark.cpp

.understand-anything/config.json

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+{
+  "outputLanguage": "en"
+}