Ch. 6: halve Structurizr — consider splitting (-640 lines) #1916

Problem

06_structurizr.md is 1,278 lines — the single largest chapter in Parts A–B. Structurizr is one tool and does not warrant 1,278 lines.

Specific cuts

• 06:11–21 — DELETE the off-topic paragraph on the FINOS AaC project (belongs in an ecosystem appendix).
• 06:23–51 — SHORTEN the C4 intro by 50%; keep the table + one sentence.
• 06:57–273 — SHORTEN by 60% the Structurizr DSL tutorial (216 lines). Keep one workspace + one container + one view; defer to the official documentation for the rest. It is not the author's job to write a user manual.
• 06:283–287 — Swap Structurizr Lite (EOL) for Structurizr Local throughout, but later sections still refer to Lite.
• 06:361–446 — MOVE TO ch. 24 (Team Enablement). 85 lines on "Foundational bootcamps", "Pair-modelling rotations" and "CoP" are not Structurizr-specific.
• 06:448–494 — MOVE TO an appendix/README. Describes the book's own repo contents (docs/examples/structurizr/...) — distracting.
• 06:496–634 — SHORTEN: keep the GitHub Actions example, DELETE GitLab CI + PR-validation (same pattern three times).
• 06:636–783 — Three complete DSL workspaces (Microservices/Event-Driven/Multi-Tenant); KEEP ONE, DELETE the others.
• 06:872–1000 — SHORTEN by 60% the "10 best practices" down to 4 consolidated practices.
• 06:1002–1048 — SHORTEN tool comparisons by 60%; one table is enough.
• 06:1050–1220 — SHORTEN by 70% "Common Challenges" (170 lines, including a 40-line Python validator). Keep Layout Control + Model Sync as concepts; DELETE the code.
• 06:1254–1268 — SHORTEN the marketing-language summary by 50%.

Suggested split

Consider splitting ch. 6 into:

• (a) "Architecture modelling with C4 and Structurizr" — core ~400 lines
• (b) Move "Team Enablement" to ch. 24
• (c) Move "Comparisons" to an appendix

Expected saving

~640 lines (50%).

Source

Hard critical review of Parts A & B. See CUT_PROPOSAL.md.