docs(P48): vision gaps + badge system + substrate→engine + CR format + agentic tags

9 requirements implemented across presentation decks and project docs:

1. DX closing slide: added 'Infrastructure as a utility, not a craft' bullet
   to convey the full vision (infrastructure consumed, not maintained;
   platform compounds value over time).
2. PW Problem slide: 'moving a merged change' → 'promoting a change'.
3. PW Problem slide: added 'Red tape' and 'Scalability without increasing
   headcount' bullets (4 frictions, not 2).
4. PW Roadmap slide: redesigned with side-by-side HTML table layout
   (Testing | Planned), 16px font, no overflow.
5. PW deck: added new slide 'What This Platform Is — and Isn't' after North
   Star (sovereign boundary, infrastructure as utility, 4 anti-goals).
   PW deck now 16 slides (was 15).
6. Maturity nomenclature: 'Available today'/'shipped' → 'Testing' across
   both decks + source markdown. New .testing badge (blue/teal #DBEAFE).
   Roadmap title: 'Testing vs. Planned'. The platform has 0 consumer
   adoption — 'shipped' was inaccurate.
7. Global: 'substrate' → 'engine' across entire project (88 matches, 30+
   files including .ciagent/, docs/, modules/, adapters/, schemas/, code).
8. Presentation files only: 'forge' → 'VCS' / 'version control system'
   (6 occurrences in 4 files). 'forge' retained in all technical docs and
   code as the industry-standard term.
9. New .agentic badge (purple/violet #EDE9FE) appended to agentic features
   in both decks: confidence signal, autonomous dev, pattern recognition,
   dynamic module creation, citizen developer surface, auto-promotion.

Also: Change Request ID format changed from 'CR-2026-001' to 'CHG0678912'
across presentation files, consumer guide, and test fixtures.

HTML re-rendered. PPTX rendered for release upload.

---ci---
phase: 48
milestone: v1.9
status: complete
requirements:
  covered: []
  partial: []
---/ci---

adapters/README.md

@@ -2,7 +2,7 @@
 
 ## Overview
 
-Adapters translate the substrate-agnostic Target Stack IR to substrate-specific formats. The Terraform adapter is the primary adapter (IR → HCL). Policy adapters translate security tool output into normalized `PolicyCheckResult` records that the confidence signal consumes in an engine-agnostic way.
+Adapters translate the engine-agnostic Target Stack IR to engine-specific formats. The Terraform adapter is the primary adapter (IR → HCL). Policy adapters translate security tool output into normalized `PolicyCheckResult` records that the confidence signal consumes in an engine-agnostic way.
 
 ## Existing Adapters
 

adapters/terraform/adapter.py

@@ -6,7 +6,7 @@ root module that calls the L1 modules, the stack-typed relationships to
 Terraform module references, and emits a Terraform plan from the stack.
 
 The adapter is a THIN LAYER; it does not own L1/L2 content — it only
-translates. Substrate-agnostic in, Terraform out.
+translates. Angine-agnostic in, Terraform out.
 
 Phase 09 spike: handled one L1 (s3, stack type aws:s3:bucket).
 Phase 13: generalized the resource/output emission via TYPE_MAP +
@@ -21,7 +21,7 @@ import os
 import sys
 
 
-# Stack type -> Terraform resource type. The only substrate-specific table.
+# Stack type -> Terraform resource type. The only engine-specific table.
 # As more L1s land, this grows; the L1 content + stack do not change.
 TYPE_MAP = {
     "aws:s3:bucket": "aws_s3_bucket",