449

[RAprogramm]

Closes #449

Documentation accuracy pass driven by three independent audits (README template, ru/ko READMEs, rustdoc prose). Docs now match actual behavior; no code changes.

README.template.md (README.md regenerated)

• Problem JSON snippet: nonexistent with_retry_after_duration on AppError → with_retry_after_secs(30)
• Telemetry section: removed the panicking request_ref through a converted AppError; documented that generated From conversions carry only kind/code (+optional message) and forward no sources/providers; added nightly note for error_generic_member_access
• DisplayMode section rewritten as environment-detection API (Display does not consult the mode)
• telegram-webapp-sdk → init-data (the feature that actually exists); turnkey highlight without nonexistent tracing instrumentation; std on by default; examples claim matched to reality; colored/benches wording fixed

rustdoc (22 files, doc comments only)

• downcast_mut honestly documented as a stub; is/downcast_ref clarified to inspect the source
• redis doc example now asserts the real mapping (IO → DependencyUnavailable) and compiles as a guarded doctest
• five convert modules no longer claim 'error text preserved in message' (it goes to metadata + source chain)
• actix: removed nonexistent empty-body mode, fixed field inventory (code, grpc), fixed broken intra-doc link
• lib.rs front page: MSRV 1.96, feature list corrected and completed (init-data, sqlx-core, sqlx-migrate, colored, tracing, metrics, backtrace)
• broken apostrophe fences fixed; never-compiling cfg(test) doc examples replaced with prose; grpc.name/value field names; reqwest impl-doc mapping; io::Error std-gating; AppCode underscore rules; redaction wording on axum/actix impls; .context() reclassification note; tokio timeout wording

README.ru.md / README.ko.md (full resync with English)

• versions 0.24.19 → 0.28.0, MSRV 1.96, license MIT-only badges/footers, REUSE badge, missing Examples section + TOC, install snippet with init-data/colored, all fresh accuracy fixes propagated; code blocks byte-identical to English

Verification: full workspace test suite, doctests (172 passing), clippy zero warnings, nightly rustfmt clean, readme_sync 36/36.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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