Repair mojibake in step comments and run-001 artifacts

docs/run-001/comments/step-3-corrected.md

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+Corrected UTF-8 re-post of the Step comment.
+
+Execution Summary
+- Reorganized the current run artifact for Step 3 Content Structuring.
+- Reference artifact: `docs/run-001/03-structure/content-structure.md`
+
+Execution Results
+- Structure target: keep the original block order and only regroup it into visible blocks and popup blocks.
+- Visible target: keep the main comparison axes and the core relationship statement on the slide.
+- Placement rule: top for the problem and examples, middle for definitions and relationships, bottom for...
+- terminology mixing problem
+- representative examples
+- terminology definitions
+- relationship among core technologies
+- DX and BIM comparison
+
+KPI / Verdict
+- Verdict: pass
+
+Next Deliverables
+- `docs/run-001/03-structure/content-structure.md`