…og detail panel (#278)

…romise.all (#281)

)

…iants (#288)

#277)

Co-authored-by: Anthony Fu <github@antfu.me>

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

…285)

* feat: migrate warnings/errors to structured diagnostics via logs-sdk

Replace inconsistent console.warn/error/throw patterns with structured
diagnostics using @antfu/experimental-logs-sdk. Each error gets a unique
code (DTK0001-DTK0032 for core/rpc, RDDT0001-RDDT0002 for rolldown)
with auto-generated docs URLs and ANSI-formatted output.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix: add throw keyword before logger.throw() for TypeScript control flow

TypeScript doesn't narrow types after `logger.CODE().throw()` because
the return type inference doesn't propagate `never` through the chained
call. Adding `throw` before the expression fixes control flow analysis.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* chore: migrate from @antfu/experimental-logs-sdk to logs-sdk@0.0.5

Package renamed from `@antfu/experimental-logs-sdk` to `logs-sdk`
(now under vercel-labs/logs-sdk). Updated all imports, catalog entry,
and docs references.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* docs: add structured diagnostics guide to AGENTS.md

Document the error code system (prefixes, numbering, diagnostics files)
and step-by-step instructions for adding new errors so future agents
follow the established pattern.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* chore: upgrade logs-sdk to 0.0.6

Rename `reporter` to `reporters` in createLogger options to match the
updated API.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>