docs: cut 1.3.3 notes for the tier work

CHANGELOG gets all five breaking changes, not the one the draft had:
ThinkingCapability's constructor, two ports that grew a parameter with
no default, resolve_thinking's new return type, and ProviderProfile's
single wire field. Behaviour changes get their own section, including
the one that is easy to miss — the openai fallback segment no longer
refuses an unknown shape, so a downstream that parks a foreign model
there and asks for thinking used to fail at assembly and now sends
nothing at all. minimax is called out as the exception it is: the gateway
proved M3 does not think without a parameter, so that segment keeps its
medium and its downstreams see no change this release.

The capability table is reported as it stands — 17 of 24 rows measured,
7 still on documentation, with the reason each one went unmeasured, so
nobody reads "measured" into a row that is a guess. The auto limitation
and its deliberate MiniMax-M3 inconsistency are written down rather than
left for someone to trip over; issue #21 holds the real fix.

ARCHITECTURE had five claims that measurement showed had gone false:
the cache key formula, the field count, the reconcile predicate and its
throttle key, and two field lists. README's FIELD set was missing the
two new keys it calls exhaustive.

docs-convention still opened by announcing a 17-page site that has not
existed since August. It now says what is actually there — one placeholder
page pointing at .env.example, CHANGELOG and the source docstrings — and
says which four files carry the sync gate while the site is down.

research-wiki/plans/2026-09-04-reasoning-effort.md

@@ -376,13 +376,13 @@ def effective_effort(
 1. `make lint` + `make test` 全绿;`make format`。
 2. CHANGELOG 加「未发布」段: 破坏性变更(`ThinkingCapability` 构造签名)、新增(八档 `Effort`、两个 env 键、遥测新列、四个 provider 段)、行为变更(`openai` 段两档由未知改为 OpenAI 标准形态)。
 3. 按 docs-convention §2 同步 wiki(公共行为变更必须同步,版本 bump 不得裸发)。**CHANGELOG 必须覆盖三条行为变更**,漏第三条是独立验证点名的风险: ① `ThinkingCapability` 构造签名(破坏性);② minimax/openai/anthropic/google 开档不再注 `medium`;③ `openai` 兜底段由「形态未知即报错」放宽为标准形态——把别家模型挂在该段下并配 `ENABLE_THINKING=true` 的下游,旧版装配期报错,新版静默不注入任何字节(对这四段涉及的模型无害,它们默认即推理;但语义变了,须明写)。
-4. 版本号 `1.4.0`(minor: 公共 API 破坏性变更),两处一致。**本任务只 bump 不发布**——发布走 CLAUDE.md §4.4.1 全清单。
+4. 版本号 **`1.3.3`**(2026-09-05 人类指令;不因破坏性变更走 minor),`pyproject.toml` 与 `src/polygateway/__init__.py` 两处一致。**本任务只 bump 不发布**——发布走 CLAUDE.md §4.4.1 全清单。
 
 **验收**: `make ci` 通过;CHANGELOG 与 wiki 均含破坏性变更条目。
 
 **验证**: `conda run -n PolyGateway make ci` → PASS
 
-- [ ] 提交: `docs: cut 1.4.0 notes for the tier work`
+- [ ] 提交: `docs: cut 1.3.3 notes for the tier work`
 
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