Cleanud up

docs/CLEANUP.md

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+# Repository cleanup
+
+Removed unused files:
+
+- `component-source/generated/`: original empty C stubs; active makefile builds
+  from `component-source/component/`.
+- Both `CmpAtomModbus_library.precompilecache` files: local CODESYS caches,
+  regenerated by the IDE; older duplicate was under artifacts.
+- `docs/document_export.py`: depended on an export already absent from this ZIP.
+- `docs/DOCUMENTATION-VALIDATION.md`: report for an export absent from this ZIP;
+  current validation is consolidated in `VALIDATION.md`.
+
+Rewrote README/build instructions to use the actual working `.library`, removing
+references to deleted exports, migration scripts and first-time Git initialization.
+Retained API/usage details and stated that their baseline is the last supplied export.
+Updated ignore rules and file checksums.
+
+Preserved exact bytes of the `.library`, ARM64 `.so`, active C sources, SDK, tests
+and all existing Git metadata. Git changes are not staged, committed or pushed.
+Old files remain recoverable from Git history where previously committed.
+
+To apply to an existing checkout, replacing files alone will not remove obsolete
+files. Prefer extracting this full snapshot into a separate directory and reviewing
+its existing Git status; alternatively remove the listed obsolete paths explicitly
+while applying updated files, keeping your checkout's own `.git` directory.