fix(java): align DOCX rendering with Word for Latin documents

[shps951023]

Summary

Fixes #187 — aligns the Java DOCX renderer with Word for Latin documents, bringing 14_Thesis_Chapter to 0.9932 (text similarity 1.0, 2/2 pages).

Changes

• Style text colors — paragraph-style rPr/w:color applied to runs without explicit color (Heading2 blue 4F81BD).
• Bullet markers — resolve numPr → abstractNum → lvl; Symbol PUA bullet (\uF0B7) maps to •.
• Width metrics — mirror .NET EstimateCalibrTextWidth/EstimateWrapTextWidth: Calibri-default documents use calibrated tables; other defaults wrap with actual TTF advances; center/right alignment uses actual font advances.
• Paragraph flow — contextualSpacing collapse, keepNext widow control, top-of-page baseline (font ascent), spacing-before suppression at page top, no spacing collapse across tables.
• Tables — auto-width table indent -108 twips, cell vertical margin 0, spacing tuned to Word/LibreOffice.
• Bullet line height — Symbol label advance 16.7pt (factor 1.21).

All changes are in PoiDocxRenderer.java.

Validation

• mvn test: 78/79 passing (issues66 CJK smoke test fixed; one pre-existing Vietnamese issue91 extraction failure remains).
• 14_Thesis_Chapter: 0.9856 → 0.9932 (text 1.0, visual 0.983, 2/2 pages).
• Full issue/docx benchmark: 0.7224 average (28 cases).

[coderabbitai]

Note

Currently processing new changes in this PR. This may take a few minutes, please wait...

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Advanced

Run ID: ff1559d2-ab50-4cfb-92a3-fea1a30d6a96

📥 Commits

Reviewing files that changed from the base of the PR and between 28cbae2 and d4859dd.

📒 Files selected for processing (1)

• minipdf-java/minipdf/src/main/java/io/github/minisoftware/minipdf/internal/docx/PoiDocxRenderer.java

 ____________________________________________________________________________________________________________________________________________________
< There are no final decisions. No decision is cast in stone. Instead, consider each as being written in the sand at the beach, and plan for change. >
 ----------------------------------------------------------------------------------------------------------------------------------------------------
  \
   \   \
        \ /\
        ( )
      .( o ).

✨ Finishing Touches

📝 Generate docstrings

• Commit to this branch
• Create a new PR

🧪 Generate unit tests (beta)

• Commit to this branch
• Create a new PR

---

_{Comment @coderabbitai help to get the list of available commands.}