docs(tools): name both raw routes, complete the evaluation-floor list

The previous commit's `UNPRINTABLE` sentence said the raw-reach point for all
three characters is `pyScalar`'s `JSON.stringify`, and the test comment said
that route is the only one. Both are exclusive claims and both are false: the
subscript tool-name comment calls `JSON.stringify` itself, and a tool name
carrying NEL, LS, or PS always lands there, none of the three being
`XID_Continue`. `pyScalar`'s own docstring already recorded that inheritance,
so the file contradicted itself. Both sentences now name the two call sites.

The note's evaluation axis was introduced as "the `typing` names the block
spells", which excludes one of its own members (`A | B` is operator syntax)
and omitted PEP 585 builtin generics — `dict[str, Any]` and `list[…]` appear
in nearly every render and need 3.9. The axis is now "the names and syntax the
block would evaluate at definition time", enumerated 3.8 through 3.11.

The test title covered two of the three characters it asserts; NEL is NEXT
LINE, neither a line nor a paragraph separator.

.agents/notes/implemented/feature/2026-07-31-code-mode-language-dispatch.i18n.yaml

@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write .agents/notes/implemented/feature/2026-07-31-code-mode-language-dispatch.md
-2026-07-31-code-mode-language-dispatch.md: e7adc5386e101bd02aba525a22070f5cac3d840f
-2026-07-31-code-mode-language-dispatch.zh.md: ebfb228aaca7a3aa2a3a7b9f44977f1b0cebe045
+2026-07-31-code-mode-language-dispatch.md: 1fbe7ed46885d10e0420004284a40b606cafd521
+2026-07-31-code-mode-language-dispatch.zh.md: c9e0b6f84715db5fd9a0568b4c9a368dd564e315