docs(P47): presentation slide updates + HIPAA removal from all docs

Presentation changes (both Marp decks + source markdown):
1. Title slide: deck title as H1 (slightly bigger), 'Agentic Cloud Delivery
   Platform' as H3 subtitle — cleaner title hierarchy
2. DX deck: removed Local Reproducibility slide (not beneficial for DX)
3. DX deck: Safe Promotion Path slide redesigned with side-by-side layout
   for Approaches A and B (HTML table, two columns)
4. DX deck: 'an agent' → 'an AI agent' (slide 2 + Citizen Developer slide)
5. DX deck: What a Developer Does — diagram floated to the right side
6. Header simplified to just the deck name (subtitle now on title slide)

HIPAA removal (25 files):
- Completely removed all HIPAA references from all markdown documentation,
  presentation source files, module READMEs, and rendered HTML
- Removed HIPAA from compliance milestone lists (GDPR, SOX, SOC2, DORA remain)
- Removed HIPAA section references (§164.xxx) from compliance annotations
- Cleaned up empty parentheses and broken commas left by removal
- Re-rendered both HTML decks from updated Marp source

---ci---
phase: 47
milestone: v1.9
status: complete
requirements:
  covered: []
  partial: []
---/ci---

modules/STANDARDS.md

@@ -431,7 +431,7 @@ Every module README MUST follow the structure of
 7. `## Usage` — a concrete snippet showing how a consumer references
    the module in a contract.
 8. `## Compliance extension points` — resources or behaviors that could
-   be added for the future compliance milestone (GDPR, SOX, SOC2, HIPAA,
+   be added for the future compliance milestone (GDPR, SOX, SOC2,
    DORA). Not implemented yet; listed so the redesign can plan for them.
 9. `## Examples` — links to `examples/simple.yaml` and
    `examples/complex.yaml` with a one-line description of each.