Docs: examples/README — phpc/vm/aot run matrix per example folder

[PurHur]

Problem

examples/README.md still describes only bin/vm.php / bin/compile.php -l and an outdated benchmark table (001/002 missing from the generated table). Contributors following README.md quick start use phpc serve, phpc build, and phpc lint, but the examples folder docs do not map which example runs in which mode.

Goal

Each examples/00x-*/ folder has a short run matrix in examples/README.md:

Example	VM	JIT	AOT build	AOT runtime notes
000-HelloWorld	✅	✅	optional	no superglobals
001-SimpleWeb	✅ -q/env	✅	✅	runtime QUERY_STRING / POST (#201, #257)
002-StaticWeb	✅	✅	✅ recommended	no superglobals — #247 execute smoke

Scope

• Replace stale benchmark-only intro with phpc-first commands (./phpc lint, ./phpc serve, phpc build, phpc serve --aot)
• Link test/unit/ExamplesCompileTest.php (Testing: Example compile gate (VM run + AOT -l for all examples/*.php) #203, Testing: phpc lint gate for shipped examples in CI #243, Testing: ExamplesCompileTest AOT execute smoke (002-StaticWeb build + run) #247)
• Note harness verification: make test-docker / ./script/docker-ci-local.sh
• Regenerate benchmark table via script/rebuild-examples.php when AOT: Re-enable examples/001-SimpleWeb in benchmark table with runtime GET #60 lands
• Cross-link Docs: Rewrite README feature list to match current compiler (2026) #48 (root README rewrite) — this issue is examples-specific only

Acceptance criteria

A new contributor can run all three shipped examples without reading root README.md first.

Verification

Docs-only PR; reviewer runs:

./phpc lint examples/001-SimpleWeb/example.php
make web-smoke

Related

• Docs: Rewrite README feature list to match current compiler (2026) #48 root README
• Docs: Local CI matrix (host, Docker, GHA skips) in README #245 local CI matrix
• AOT: Re-enable examples/001-SimpleWeb in benchmark table with runtime GET #60 benchmark table for 001-SimpleWeb