Adds qt migration example

.clang-format

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+BasedOnStyle: LLVM
+IndentWidth: 4
+TabWidth: 4
+UseTab: Never
+ColumnLimit: 120
+Language: Cpp
+Standard: c++20
+PointerAlignment: Left
+ReferenceAlignment: Left
+SortIncludes: true
+IncludeBlocks: Regroup
+BreakBeforeBraces: Custom
+BraceWrapping:
+  AfterClass: true
+  AfterControlStatement: true
+  AfterFunction: true
+  AfterNamespace: true
+  AfterStruct: true
+  BeforeCatch: true
+  BeforeElse: true
+AllowShortIfStatementsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: Empty
+NamespaceIndentation: None
+IndentCaseLabels: true
+AlignTrailingComments: true
+SeparateDefinitionBlocks: Always
+SpaceBeforeParens: ControlStatements
+Cpp11BracedListStyle: true

.envrc

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+export STRIX_LLM="qwen3.5-397b-a17b"
+export SCW_SECRET_KEY="REPLACE_WITH_YOURS"
+
+export COPILOT_PROVIDER_TYPE="openai"
+export COPILOT_PROVIDER_API_KEY="${SCW_SECRET_KEY}"
+export COPILOT_PROVIDER_BASE_URL="https://api.scaleway.ai/v1"
+export COPILOT_MODEL="${STRIX_LLM}"
+
+export COPILOT_PROVIDER_MAX_PROMPT_TOKENS="32768"
+export COPILOT_PROVIDER_MAX_OUTPUT_TOKENS="8192"