CI: Default THROWSWEB_AOT_LINK_GATE + THROWSWEB_AOT_SMOKE_GATE in ci-local after #2101

[PurHur]

Problem

#2101 will wire opt-in THROWSWEB_AOT_LINK_GATE / THROWSWEB_AOT_SMOKE_GATE for examples/007-ThrowsWeb (pattern from 006 #2011 / #2012).

Without a follow-up flip, throw/catch AOT regressions stay manual until someone runs phpc build by hand — unlike 006 execute smoke which is default-on on master.

Goal

When #2101 PHPUnit + harness curls are green:

1. script/ci-defaults.env — THROWSWEB_AOT_LINK_GATE=1, THROWSWEB_AOT_SMOKE_GATE=1 (default-on)
2. script/ci-local.sh llvm group runs link + native execute without extra env
3. docs/local-ci-matrix.md + phpc doctor --gates document opt-out (=0 for LLVM-less hosts)

Implementation hints

Piece	Path	Notes
Defaults	script/ci-defaults.env	Mirror FILE_UPLOAD_WEB_AOT_SMOKE_GATE flip
CI wire	script/ci-local.sh, script/ci-common.sh	After ThrowsWebAot* tests green
Doctor	lib/Doctor.php	Row exists via #2102 — update default column
Docs	examples/007-ThrowsWeb/README.md	Gate table default 1

Verify before flip

THROWSWEB_AOT_LINK_GATE=1 THROWSWEB_AOT_SMOKE_GATE=1 ./script/ci-local.sh \
  --filter 'ThrowsWebAot'

docker run --rm -v "$(pwd):/compiler" -w /compiler php-compiler:22.04-dev \
  env THROWSWEB_AOT_LINK_GATE=1 THROWSWEB_AOT_SMOKE_GATE=1 ./script/ci-local.sh \
  --filter ThrowsWebAot

Acceptance criteria

• Default ./script/ci-local.sh runs 007 AOT link+execute when LLVM present (or skips with clear message)
• THROWSWEB_AOT_*_GATE=0 documented for fast iteration
• No .github/workflows/* changes

Dependencies

• #2101 — opt-in gates + tests land first
• #195 / #57 / #2084 — language + PHPTs
• #2093 — VM smoke before AOT default-on

Links

• #2104 — examples-aot-smoke.sh 007 slice
• #2124 — deploy smoke (later)
• ROADMAP #78

[PurHur]

Scope correction (batch 126): #2101 ✅ closed — PHPUnit gates + ThrowsWebAotExecuteTest wiring landed. Default-on flip (this issue) should wait until #2157 AOT throw/catch + empty user class is green on harness (tests currently skip via isUserClassAotBlocked). Then #2104 slice + #2135.

[PurHur]

Gate ladder pair with #2178 (audit/wiring) → this issue (default-on flip after #2157 green).

Order: #2157 language → #2178 opt-in audit in llvm tail → #2135 set THROWSWEB_AOT_LINK_GATE / THROWSWEB_AOT_SMOKE_GATE defaults in script/ci-defaults.env.

Verify on harness: make test-harness or THROWSWEB_AOT_LINK_GATE=1 ./script/docker-ci-local.sh.

[PurHur]

Gate ladder de-dupe (batch 130):

#2101 ✅ wiring (opt-in PHPUnit + env vars)
  → #2178 audit (ci-local llvm tail — confirm hooks before flip)
  → #2157 language (AOT empty class + throw/catch — must be green)
  → #2135 (this) default-on THROWSWEB_AOT_* in ci-defaults.env
  → #2166 / #2182 bench regen + drift guard

#2101 is wiring only; #2157 is the language blocker. Do not flip #2135 until #2178 audit passes on a branch with #2157 green.

[PurHur]

Gate ladder (batch 131): Default-on flip waits on #2157 (language), not #2101 ✅ (PHPUnit wiring landed).

Step	Issue	When
Language	#2157	AOT throw/catch + empty ValidationError execute green
Audit	#2178	llvm-tail wiring before flip
Flip	#2135 (this)	THROWSWEB_AOT_* default :=1 in ci-defaults.env
Bench	#2182 / #2166	README row drift (orthogonal)

Verify: THROWSWEB_AOT_LINK_GATE=1 ./script/docker-ci-local.sh — not GHA (#394 ✅).