[leonlaiyc]

What changed

• Reworked the bilingual 01–07 walkthrough copy for the external-facing v1.
• Expanded section 02 into an end-to-end AWS data foundation and four-module service map.
• Increased presentation readability and redesigned sections 05–07, including decision rows, implementation lessons, and evidence cards.
• Aligned the English version, README, closeout documentation, and walkthrough acceptance checks.

Why

The previous architecture view did not show enough of the event-generation, processing, governance, AWS service, and delivery paths. Several content-heavy sections also used typography and layouts that were too small for interview presentation use.

Impact

The public portfolio now communicates the system flow and AWS boundaries more clearly, uses larger presentation-oriented typography, and keeps Chinese, English, and repository documentation consistent.

Validation

• Walkthrough static acceptance check passed.
• node --check site/app.js passed.
• git diff --check passed.
• The full Python suite was not rerun because the local bundled runtime lacked pytest and dependency installation timed out; no product Python implementation was changed.