docs(performance): name the release the snapshot ships in

[lesnik512]

Summary

The Results paragraph described the measured commit as "3.4.0 plus the template resolver of #470,
unreleased when measured". That was written while #470 was unmerged-to-a-release; 3.5.0 shipped
18bbe64, so the parenthetical now says something false about a released version.

Rather than swapping one time-sensitive phrasing for another, the sentence now names the release
the commit ships in. 18bbe64 is in 3.5.0 permanently, so this cannot rot again: a later release
does not make "first released in 3.5.0" wrong, and the blockquote below the paragraph already
tells the reader these numbers are a snapshot that a newer release does not update.

Same treatment for the history paragraph further down, where "#470 (after 3.4.0)" becomes
"#470, in 3.5.0" — the release is both more precise and more useful to a reader working out
which version they need.

Changes

• docs/introduction/performance.md: drop "unreleased when measured" from the measurement
  provenance; name 3.5.0 as the release containing 18bbe64.
• Same file, resolver-history paragraph: "feat: generate Factory resolvers from a source template; compile overrides in #470 (after 3.4.0)" → "feat: generate Factory resolvers from a source template; compile overrides in #470, in 3.5.0".

No numbers, tables or methodology changed. Text only.

Checklist

• Lint and format pass (ruff) — no Python touched
• Type check passes (ty) — no Python touched
• Tests pass and new behavior is covered — docs-only, no behavior
• Build succeeds (uv build) if packaging or build config changed — not touched; just docs-build (mkdocs --strict) passes locally
• Repo metadata stays consistent across the three surfaces — not touched

[github-actions]

Benchmark

Details

Benchmark suite	Current: 512c771	Previous: 7cfecfd	Ratio
benchmarks/test_guard_by_type.py::test_g16_resolve_by_type	4085119.3441057624 iter/sec (stddev: 1.5241023757425935e-8)	3862036.0237035276 iter/sec (stddev: 1.3303917229091063e-8)	0.95
benchmarks/test_guard_by_type.py::test_g17_resolve_by_type_large_registry	4057558.9076482537 iter/sec (stddev: 1.3217755637867651e-8)	3813872.3504519854 iter/sec (stddev: 9.38985556468168e-9)	0.94
benchmarks/test_guard_cold.py::test_g8_cold_first_resolve	16291.440756481155 iter/sec (stddev: 0.0000415772652747637)	15266.696049618851 iter/sec (stddev: 0.00024776227293024416)	0.94
benchmarks/test_guard_cold.py::test_g8b_cold_first_resolve_cached	13362.426712943425 iter/sec (stddev: 0.0001247065601936726)	13815.868686408368 iter/sec (stddev: 0.000047392563832202765)	1.03
benchmarks/test_guard_concurrency.py::test_g14_concurrent_cached_hit[1]	560.9121649652575 iter/sec (stddev: 0.00003537909271232425)	565.6511089983209 iter/sec (stddev: 0.000030007400355752134)	1.01
benchmarks/test_guard_concurrency.py::test_g14_concurrent_cached_hit[2]	495.7996225825537 iter/sec (stddev: 0.00019948311404333988)	522.6693810949874 iter/sec (stddev: 0.000023965715560089692)	1.05
benchmarks/test_guard_concurrency.py::test_g14_concurrent_cached_hit[4]	454.7269837419972 iter/sec (stddev: 0.00010154235162832769)	466.44468742863137 iter/sec (stddev: 0.000028202407331081627)	1.03
benchmarks/test_guard_concurrency.py::test_g15_concurrent_first_resolve[1]	1668.8474794662202 iter/sec (stddev: 0.00021343669983322474)	1722.2042618656355 iter/sec (stddev: 0.00016413763644843266)	1.03
benchmarks/test_guard_concurrency.py::test_g15_concurrent_first_resolve[2]	1297.6978440121532 iter/sec (stddev: 0.00027038961078582334)	1356.109018553321 iter/sec (stddev: 0.00020812095438373855)	1.05
benchmarks/test_guard_concurrency.py::test_g15_concurrent_first_resolve[4]	958.2087781697817 iter/sec (stddev: 0.0002387782755440825)	987.4683274689364 iter/sec (stddev: 0.00021213840360646109)	1.03
benchmarks/test_guard_concurrency.py::test_g15b_concurrent_first_resolve_sibling_children[1]	1307.5189005130303 iter/sec (stddev: 0.001707843047694891)	1450.4575728282805 iter/sec (stddev: 0.0011095057378529203)	1.11
benchmarks/test_guard_concurrency.py::test_g15b_concurrent_first_resolve_sibling_children[2]	1177.4653617661877 iter/sec (stddev: 0.00026936035796399466)	1222.5626130852595 iter/sec (stddev: 0.00020886205986378695)	1.04
benchmarks/test_guard_concurrency.py::test_g15b_concurrent_first_resolve_sibling_children[4]	791.2110170331308 iter/sec (stddev: 0.00027826134868258175)	822.8026761408097 iter/sec (stddev: 0.00021311875574685902)	1.04
benchmarks/test_guard_lifecycle.py::test_g6_build_child_container	741372.3350537777 iter/sec (stddev: 5.958608765729965e-8)	748186.386844205 iter/sec (stddev: 4.9565066317337825e-8)	1.01
benchmarks/test_guard_lifecycle.py::test_g6b_build_child_container_auto_scope	680245.1535516406 iter/sec (stddev: 7.036105148709118e-8)	676046.2906492165 iter/sec (stddev: 2.8384858854666474e-8)	0.99
benchmarks/test_guard_lifecycle.py::test_g7_request_lifecycle_batch	2411.224994927644 iter/sec (stddev: 0.000028720984282624873)	2477.2191848353623 iter/sec (stddev: 0.000010745635352416172)	1.03
benchmarks/test_guard_lifecycle.py::test_g7c_event_loop_floor_control	60990.164937348 iter/sec (stddev: 0.0000020437641495018646)	61051.803113664784 iter/sec (stddev: 0.0000017055814125832133)	1.00
benchmarks/test_guard_lifecycle.py::test_g13_teardown_at_scale	48524.78145562509 iter/sec (stddev: 0.000002864788764328528)	49977.87998963018 iter/sec (stddev: 0.0000018795544700124884)	1.03
benchmarks/test_guard_resolve.py::test_g1_transient_resolve	2481118.686788463 iter/sec (stddev: 3.951465264347602e-8)	2476325.4005803284 iter/sec (stddev: 2.3200973619045826e-8)	1.00
benchmarks/test_guard_resolve.py::test_g2_cached_resolve	4247389.904577962 iter/sec (stddev: 6.321778611781777e-9)	4104644.294235942 iter/sec (stddev: 6.547714517168123e-9)	0.97
benchmarks/test_guard_resolve.py::test_g3_deep_chain	819338.888560229 iter/sec (stddev: 3.2108667328373944e-7)	857840.2383689815 iter/sec (stddev: 4.823183237768852e-8)	1.05
benchmarks/test_guard_resolve.py::test_g4_wide_resolve	498280.9059603148 iter/sec (stddev: 3.367575207945311e-7)	506194.3636994246 iter/sec (stddev: 4.035066237162266e-7)	1.02
benchmarks/test_guard_resolve.py::test_g5_cross_scope	1949651.8019386434 iter/sec (stddev: 3.3603506884799316e-8)	1784764.4563767784 iter/sec (stddev: 2.3268893140779702e-8)	0.92
benchmarks/test_guard_resolve.py::test_g9_context_resolve	1103508.9764657184 iter/sec (stddev: 1.5294036210517903e-7)	1109671.035533132 iter/sec (stddev: 1.3847430467634571e-7)	1.01
benchmarks/test_guard_resolve.py::test_g12_override_active_resolve	849547.0809630955 iter/sec (stddev: 8.82733190480943e-8)	867628.3690852221 iter/sec (stddev: 3.486272088767959e-8)	1.02
benchmarks/test_guard_resolve.py::test_g18_alias_hop	2890310.4077845346 iter/sec (stddev: 1.0406309105733445e-8)	2843489.9619360515 iter/sec (stddev: 9.243187930869865e-9)	0.98
benchmarks/test_guard_validate.py::test_g10_validate_deep_chain	23908.49358791877 iter/sec (stddev: 0.00003361855471047063)	24467.966098418787 iter/sec (stddev: 0.000025458356958895093)	1.02
benchmarks/test_guard_validate.py::test_g11_validate_wide	15050.384548617154 iter/sec (stddev: 0.00002853764165956522)	15162.040440855777 iter/sec (stddev: 0.000027705191788468367)	1.01

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