Business plan draft 0.3 in two versions: Plan A ~180M and Plan B ~225M THB

- One build makes both documents: plan_variant.py switches the
  plan-specific text (pick / is_a / label); build_plan.py writes
  CNX-Vinyl-Business-Plan-A and -B (docx), export_pdf.py exports both PDFs
  with the table of contents filled in. Draft 0.2 (single launch-plant
  plan with contingency) is removed; it stays in the history.
- Plan A: the launch plant with every machine and six cost levers, ~177M
  THB with the ramp-up reserve, no contingency. Plan B: the second Duplex
  at launch, five presses, ~224M THB on the same basis. Each version reads
  as a complete plan with one table comparing it with the other; the
  216M investor-question text is gone, Pheenix is priced at OMS's
  reference plus 20 %.
- Calculator renders in both documents, each from its own preset: the
  plant at a glance (Figure 4), the budget check (Figure 5) and ten years
  of cash (Figure 6), in docs/renders/calculator/.
- Calculator budget card: the verdict and third KPI now name the tightest
  budget the midpoint fits (Plan A: 3.3M to spare under 180M; Plan B:
  0.8M under 225M) instead of always 225M.
- Fixes: CD replication cross-references point to section 4.10; the
  blended price in section 3.3 and roadmap item 1 is 3.76 to 5.27 USD at
  60 % specials (3.50 to 4.60 at a standard-heavy mix).

README.md

@@ -296,14 +296,20 @@ The detail lives in dedicated documents:
   (1.25M records, EBITDA ~3.1M USD, payback ~2.2 years on ~224M THB, if
   the records sell), the five-press table, and the levers and
   caveats behind the numbers
-- [Business plan](docs/business-plan/CNX-Vinyl-Business-Plan.docx): the
-  investor-facing roll-up of everything above, built from
-  `docs/business-plan/build/` (run `python build_plan.py` to regenerate
-  after the numbers move; the PDF is exported with LibreOffice so the
-  table of contents is filled in). Draft 0.2 (October 2026) is built on
-  the launch plant: the whole chain at launch, the investor's budget
-  question, the launch plant's operating picture, the commissioning order
-  and its risks
+- Business plan, draft 0.3 (October 2026), in two versions:
+  [Plan A, ~180M THB](docs/business-plan/CNX-Vinyl-Business-Plan-A.pdf)
+  ([docx](docs/business-plan/CNX-Vinyl-Business-Plan-A.docx)) and
+  [Plan B, ~225M THB](docs/business-plan/CNX-Vinyl-Business-Plan-B.pdf)
+  ([docx](docs/business-plan/CNX-Vinyl-Business-Plan-B.docx)): the
+  investor-facing roll-up of everything above, each a complete plan with
+  one table comparing it with the other, both priced without contingency
+  and with the ramp-up reserve. Each carries renders of the
+  [plant and business plan calculator](docs/fleet-calculator.html) with
+  its own preset (plant view, budget check, ten years of cash; in
+  `docs/renders/calculator/`). Built from `docs/business-plan/build/`
+  (`python build_plan.py` makes both versions; the PDFs are exported with
+  LibreOffice so the table of contents is filled in). Draft 0.2, a single
+  launch-plant plan with contingency, is in the git history
 
 ## Repository Layout
 
@@ -311,7 +317,8 @@ The detail lives in dedicated documents:
 docs/
 ├── brand/                 Poy Records logo (1536 px PNG)
 ├── business-plan/
-│   ├── CNX-Vinyl-Business-Plan.docx   Investor business plan (generated)
+│   ├── CNX-Vinyl-Business-Plan-A.docx / .pdf   Investor business plan, Plan A (generated)
+│   ├── CNX-Vinyl-Business-Plan-B.docx / .pdf   Investor business plan, Plan B (generated)
 │   └── build/                 Python source of the plan; regenerate with
 │                              build_plan.py
 ├── consulting/            Consultancy proposals and overviews