docs(P5): render + verify — new diagrams, HTML, PPTX, tests pass (REQ-253)

New mermaid diagrams (mmd + png):
- platform-pipeline.mmd/.png — slide 6 (two-stage policy scan: Checkov
  static → plan → Wiz-or-Checkov → confidence → stage gate → apply)
- telemetry-live-ops.mmd/.png — slide 9 (CloudEvents → cold store →
  PowerBI → live ops dashboard)

Re-rendered artifacts:
- nova-autonomous-cloud-delivery.html (S&P-themed, self-contained)
- nova-autonomous-cloud-delivery.pptx (20 slides: title + 18 main + 1
  appendix; 21 media files embedded)

Verify:
- tests/test_slides_pipeline.py: 23 pass (18 main + 1 appendix slides; no
  badges; no version in footer/title; no D-###/REQ-###/.py paths in
  audience slides; old deck files removed; render script default renamed)
- tests/test_pipeline_contract.py: 10 stages (checkov-static + runtime-
  policy-scan replace old checkov stage)
- tests/test_no_forge_mentions.py: pass
- tests/test_regression_cap023_024.py: CAP-024 deck structure verified
  (18-19 slides, recap+ask, per-slide benefits)
- Full suite: 686 pass + 1 pre-existing attestation failure
  (NOVA_ATTESTATION_SIGNING_KEY_ID unset; fails on main without v1.21
  changes too)
- run_platform.sh --check-only: exit 0

---ci---
project: acdl
phase: 5
milestone: v1.21
status: execute
phase_role: execution
---/ci---

docs/presentations/assets/mmd/platform-pipeline.mmd

@@ -0,0 +1,19 @@
+%%{init: {"theme": "base", "themeVariables": {"primaryColor": "#1B1B1B", "primaryBorderColor": "#D6002A", "primaryTextColor": "#fff", "secondaryColor": "#fff", "secondaryBorderColor": "#D6002A", "secondaryTextColor": "#1B1B1B", "tertiaryColor": "#F0F0F0", "clusterBkg": "#F0F0F0", "lineColor": "#1B1B1B", "fontFamily": "\"Akkurat Pro\", \"Helvetica Neue\", \"Arial\", sans-serif"}}}%%
+
+flowchart LR
+    A["Contract"] --> B["Resolver"]
+    B --> C["Adapter"]
+    C --> D["Checkov<br/>(static code)"]
+    D --> E["Terraform<br/>plan"]
+    E --> F["Wiz<br/>(on plan)"]
+    F --> G["Confidence<br/>signal"]
+    G --> H{"Stage<br/>gate"}
+    H -->|"dev: autonomous"| I["Apply"]
+    H -->|"qa/prod/dr: attested"| I
+    I --> J["Evidence +<br/>Ledger"]
+classDef accent fill:#1B1B1B,color:#fff,stroke:#D6002A,stroke-width:2px
+classDef supporting fill:#fff,color:#1B1B1B,stroke:#D6002A,stroke-width:1px
+classDef decision fill:#D6002A,color:#fff,stroke:#1B1B1B,stroke-width:2px
+class D,E,F,G,J accent
+class H decision
+class A,B,C,I supporting

docs/presentations/assets/mmd/telemetry-live-ops.mmd

@@ -0,0 +1,17 @@
+%%{init: {"theme": "base", "themeVariables": {"primaryColor": "#1B1B1B", "primaryBorderColor": "#D6002A", "primaryTextColor": "#fff", "secondaryColor": "#fff", "secondaryBorderColor": "#D6002A", "secondaryTextColor": "#1B1B1B", "tertiaryColor": "#F0F0F0", "clusterBkg": "#F0F0F0", "lineColor": "#1B1B1B", "fontFamily": "\"Akkurat Pro\", \"Helvetica Neue\", \"Arial\", sans-serif"}}}%%
+
+flowchart TB
+    A["Platform<br/>components"] --> B["CloudEvents<br/>envelope"]
+    B --> C["Event log"]
+    B --> D["Decision<br/>ledger"]
+    B --> E["Run records"]
+    C --> F["Collector"]
+    D --> F
+    E --> F
+    F --> G["Cold store"]
+    G --> H["PowerBI<br/>views"]
+    H --> I["Live ops<br/>dashboard"]
+classDef accent fill:#1B1B1B,color:#fff,stroke:#D6002A,stroke-width:2px
+classDef supporting fill:#fff,color:#1B1B1B,stroke:#D6002A,stroke-width:1px
+class B,F,G,H,I accent
+class A,C,D,E supporting