[PPTX] Slides 7-10: Peer Comparison, Risks, Catalysts, Appendix slide implementations

[DogInfantry]

Part of epic: #32
Depends on: #43 (slides 3-6 must exist first)

Slide 7 — Peer Comparison (CCA)

• Table: Ticker | EV/EBITDA | P/E | EV/Sales | EV/FCF | Rating
• Subject company row highlighted in GS_GOLD
• Median row shown in bold below the peer set
• Discount/premium to median shown as % in parentheses

Slide 8 — Key Risks

• 3 risk blocks, each in a bordered box:
  • Risk title (bold, red)
  • 2-sentence description
  • Impact label: HIGH / MEDIUM / LOW (colour-coded pill)
• Source: risk.py output

Slide 9 — Catalysts

• 3 catalyst blocks in timeline format (left to right)
• Each: event name, expected date, bull/bear impact arrow
• Source: catalyst.py output

Slide 10 — Appendix

• DCF assumptions table: WACC, terminal growth rate, revenue CAGR, EBIT margin, capex %
• Key model inputs and data sources
• Disclaimer text in small font (standard equity research disclaimer)
• Page number in footer

Acceptance Criteria

• All 4 slides (_add_peer_comparison_slide, _add_risks_slide, _add_catalysts_slide, _add_appendix_slide) implemented
• Subject company row highlighted in CCA table
• Risk impact pills colour-coded
• Appendix DCF table populates from valuation.py output
• Disclaimer text present on appendix slide
• Total deck is exactly 10 slides after build()