docs: restore the iconic LE5 README hero

[cobusgreyling]

Puts assets/visuals/LE5.jpeg back on the English and Chinese READMEs, under the tagline. README stays short.

[github-actions]

Loop Readiness Audit

Score: 100/100 (L3)

Strong loop readiness — good candidate for L3 with explicit gates.

Top suggestions

• Run the loop and commit changelog-drafter-state.md (or append loop-run-log.md) so Loop Ready can see a fresh timestamp
• Scaffold a harness: npx @cobusgreyling/loop-init . --with-foundry (or npx @cobusgreyling/harness-foundry init --from loop-engineering:daily-triage)
• Scaffold memory tiers: npx @cobusgreyling/loop-init . --with-memory
• Scaffold a fleet: npx @cobusgreyling/loop-init . --with-fleet

_{Posted by audit.yml · loop-audit docs}