fix(#3620): point the docs at files that actually exist (#3658)

* fix(3620): point the docs at files that actually exist

docproof found 34 stale references; the reporter hand-read all 34 and reported the 8 that
are real, explaining why the other 26 are deliberate (files the documents themselves label
legacy or "superseded by", and one pre-Diataxis link label whose target still resolves).
Those 26 are left alone — re-touching them would contradict the issue's own analysis.

Every claim was re-verified against git ls-files at HEAD before editing.

docs/INVENTORY.md said its roster is anchored by six drift-control tests. Five are gone
(commands-doc-parity, agents-doc-parity, cli-modules-doc-parity, hooks-doc-parity in
5d8a8c4d; command-count-sync in fbf30792), so the sentence now names the one that exists.
Whether one test is sufficient coverage is a maintainer question the issue explicitly
declined to answer, so no new drift tests are proposed here.

The four translations were a revision further behind, each naming a seventh test deleted in
ae8bb707 that the English file had already dropped. All four now match.

Renamed targets corrected in CONTEXT.md, VERSIONING.md, docs/CONFIGURATION.md and the
update workflow. The new test names carry no issue-NNN- prefix, which is what
lint-regression-test-names requires, so they are the correct targets.

docs/TESTING-SUITES.md is the one that could cost somebody time: it INSTRUCTED contributors
to add an acknowledgment to the legacy drift-ack file, which CONTRIBUTING.md says to never
use. Rewritten from the real workflow — per-PR fragments under the drift-acks directory,
and a spent base-side ack is re-armed by rewording that fragment's reason in place, never
by adding a duplicate, since two sources naming one path is a hard error.

docs/skills/discovery-contract.md's heading named a query module deleted in 11918dcc. The
section was REMOVED rather than retargeted: its documented behavior (skip the deprecated
root) is not what the surviving code does — skill-manifest includes that root marked
deprecated:true — so retargeting would have documented something false.

Found and fixed inline, same class: VERSIONING.md described an SDK bundling step the
release workflow does not have (zero such mentions in that file); CONFIGURATION.md and four
translations named a dead model-catalog triple collapsed by ADR-457.

Dead config removed: the changeset lint's user-facing prefix list still carried two retired
sdk entries. git ls-files -- 'sdk/*' returns nothing. No test pins that array.

Left deliberately: the comment explaining the retired catalog path, the install regression
test that reconstructs the old broken layout to prove it fails, and the generated
test-timings cache. Each is a legitimate mention of a dead path, not drift.

Note lint-removed-but-needed cannot catch this class: it diffs baseRef...HEAD, so it only
sees files deleted in the change under review. These were orphaned by PRs that predate the
lint. A repo-wide existence audit would need a suppression mechanism for the 26 deliberate
mentions above; that is a feature, not part of this fix.

Fixes #3620

* chore(3620): backfill changeset PR number (#3658)

---------

Co-authored-by: sim <sim@local>

docs/ja-JP/how-to/configure-model-profiles.md

@@ -16,7 +16,7 @@
 | `adaptive` | Opus | Sonnet | Sonnet | Sonnet | ランタイム対応プロファイルで他のティアと同様に解決。ランタイムを頻繁に切り替える場合に使用 |
 | `inherit` | （セッションモデル） | （セッションモデル） | （セッションモデル） | （セッションモデル） | Anthropic 以外のプロバイダー（OpenRouter、ローカルモデル）— すべてのエージェントが現在のセッションモデルに従う |
 
-上の表は代表的なサブセットを示しています。出荷済みの全 33 エージェントは `sdk/shared/model-catalog.json` にプロファイルごとの明示的なティア割り当てを持っています。完全なテーブルは設定リファレンスの [モデルプロファイル](../CONFIGURATION.md#model-profiles) を参照してください。
+上の表は代表的なサブセットを示しています。出荷済みの全 33 エージェントは `gsd-core/bin/shared/model-catalog.json` にプロファイルごとの明示的なティア割り当てを持っています。完全なテーブルは設定リファレンスの [モデルプロファイル](../CONFIGURATION.md#model-profiles) を参照してください。
 
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