Resource-box badge taller than its container

Start in src/presentations/slides.py at add_resource_box_slide, especially the container-height calculation around line 353 and badge positioning around line 444. Run the supplied uv MRE through presentations.cli, inspect the generated .pptx, and confirm the single-row badge stays fully inside its rounded box while multi-row boxes remain unchanged.

Summary

On a resource-box slide, a box with a single row renders its gradient badge taller than the box — the badge sticks out above and below the rounded rectangle.

Impact

High — visibly broken layout on any one-row resource box (and any future short box). Affects the resource-box slide type with the default badge_height.

Environment

• ms-presentations version: 0.1.6
• Python version: 3.10+
• OS / version: reproduces on all (pure python-pptx geometry; 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 at least one box that has a single row.
2. Keep the default badge_height (1.1").
3. Render the spec 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 taller than its container.

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

A single-row resource box renders its gradient badge taller than the box, so the
badge overflows above and below the rounded rectangle. The one-row "Learn" box
has a 0.85" container, shorter than the default 1.1" badge, so the centering
offset goes negative and the badge spills out top and bottom. Open the rendered
deck and compare the one-row "Learn" badge to its box — the deck is the only output.
"""
import os
import tempfile

from presentations.cli import main

SPEC = """\
---
title: Repro - Badge taller than container
output: Badge_Taller_Than_Container.pptx
style:
  badge_height: 1.1
---

## [resource-box] Getting started

**Subtitle**: Resources

**Box**: Learn
- One Row Only | https://example.com/one

**Box**: Reference
- First Row | https://example.com/a
- Second Row | https://example.com/b
"""

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

The badge stays fully inside the box for every box, including single-row boxes.

Actual Behavior

The one-row "Learn" badge is ~1.1" tall inside a 0.85" container, so it protrudes above the box top and below the box bottom. The two-row "Reference" badge is fine.

Additional Context

Root cause in add_resource_box_slide (src/presentations/slides.py):

• Container height scales with rows: container_height = Inches(0.5 * num_rows + 0.35) (slides.py:353) → 1 row = 0.85".
• Badge height is fixed at the style default 1.1" (style.py:13).
• Badge is centered with badge_y = box_top + Inches((container_height/Inches(1) - badge_h) / 2) (slides.py:444); when badge_h > container_height the offset is negative.

Suggested fix: clamp the badge to effective_badge_h = min(badge_h, container_height/Inches(1)) and center on that value. Leaves container_height untouched, so it composes with the divider/row-centering fix. Multi-row boxes are unaffected (min() returns the original badge_h).