[ZhenHaoFu810]

Summary

• add command-aware full and compact Stata-style displays for all 14 public commands
• add escaped HTML and Jupyter rich output backed by the same display document
• extend typed result metadata for model, fit, IV, DID, and RD information with backward-compatible JSON defaults
• update bilingual user documentation, examples, API references, ADR, changelog, and version metadata

Validation

• 473 passed with local Stata 17, including all 10 reproducible Stata comparison cases
• ruff check src tests
• mypy src
• python -m compileall -q src
• source and wheel example runs: 9/9
• wheel and sdist build plus twine check

Public boundary

The branch is based directly on the current public main. It contains no internal workspace, audit output, release scripts, private paths, or agent identity annotations.

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