Resource-box badge label overflow or mid-word wrap

Start in src/presentations/slides.py at add_resource_box_slide, especially the badge text-frame code around lines 443 and 488-498. Run the provided uv MRE and inspect the generated .pptx with the default badge settings. Done means long labels fit without mid-word wrapping while short labels remain unchanged, with the resource-box geometry unaffected.

Summary

On a resource-box slide, badge labels longer than ~6 characters wrap awkwardly inside the narrow fixed-width badge — e.g. "Presentations" breaks mid-word as "Presentat ions" and "Build and Govern" stacks onto three cramped lines.

Impact

High — any resource box with a label longer than ~6 characters is hard to read. Short labels are unaffected.

Environment

• ms-presentations version: 0.1.6
• Python version: 3.10+
• OS / version: reproduces on all (verified on Windows 11)
• Install method: pip / from source
• Relevant deps (if Azure path): n/a — renders fully locally, no Azure
• Azure / model config: n/a

Steps to Reproduce

1. Author a resource-box slide with a box label longer than ~6 characters.
2. Keep the default badge_width (0.9") and badge_font_size (11).
3. Render and open the .pptx.

Minimal Reproducible Example (MRE)

# /// script
# requires-python = ">=3.10"
# dependencies = ["ms-presentations==0.1.6"]
# ///
"""Self-contained MRE — resource-box badge label overflow / mid-word wrap.

Run with:  uv run mse.py   (no venv, no Azure, no network)

Long badge labels wrap mid-word inside the fixed 0.9" badge: "Presentations"
renders as "Presentat ions" and "Build and Govern" stacks onto three cramped
lines, while the short "Learn" label is fine. Open the rendered deck and compare
the three badges — the deck is the only output.
"""
import os
import tempfile

from presentations.cli import main

SPEC = """\
---
title: Repro - Badge label overflow
output: Badge_Label_Overflow.pptx
style:
  badge_width: 0.9
  badge_font_size: 11
---

## [resource-box] Getting started

**Subtitle**: Resources

**Box**: Learn
- Microsoft AI | https://learn.microsoft.com/ai/

**Box**: Build and Govern
- Azure AI Services | https://learn.microsoft.com/azure/ai-services/

**Box**: Presentations
- Samples | https://github.com/microsoft/presentations/samples
"""

with tempfile.TemporaryDirectory() as d:
    spec_path = os.path.join(d, "minimal.spec.md")
    with open(spec_path, "w", encoding="utf-8") as f:
        f.write(SPEC)
    main([spec_path, "-o", os.getcwd()])  # renders the deck into the PWD

uv run mse.py

Expected Behavior

Long labels shrink (or otherwise fit) the badge without breaking words mid-character.

Actual Behavior

"Presentations" wraps to "Presentat ions"; "Build and Govern" stacks onto three cramped lines; "Learn" renders cleanly — showing the problem is label length, not the box.

Additional Context

Root cause in add_resource_box_slide (src/presentations/slides.py:443, 488-498): the badge is a fixed 0.9"-wide rounded rectangle with word_wrap = True at 11 pt and no auto-fit, and python-pptx does not shrink text to fit. PowerPoint hard-wraps, including mid-word when a single word exceeds the box width.

Suggested fix: set text_frame.auto_size = MSO_AUTO_SIZE.TEXT_TO_FIT_SHAPE, paired with a deterministic font step-down for long labels (so the fit is correct even in renderers that don't recompute normAutofit). This touches only the badge text frame/font — no geometry — so it's independent of the other resource-box fixes.