gleam-knowledge-patch

# Gleam Knowledge Patch Baseline: Gleam through v1.6.x (core language, types, pattern matching, pipes, `use`, `Result`/`Option`, labelled arguments, generics, opaque types, externals/FFI, BEAM and JavaScript targets, and basic build tooling); coverage: Gleam 1.7.0 through 1.17.0 plus current language, FFI, conventions, configuration, and standard-library guidance. Included release batches: `1.7.0`, `1.8.0`, `1.9.0`, `1.10.0`, `1.11.0`, `1.12.0`, `1.13.0`, `1.14.0`, `1.15.0`, `1.16.0`, and `1.17.0`. Included topic batches: `language-tour`, `externals-and-ffi`, `conventions-and-patterns`, `tooling-and-configuration`, and `stdlib-release-history`. ## Reference index | Reference | Topics | | --- | --- | | [language-and-diagnostics.md](references/language-and-diagnostics.md) | Syntax and semantics, assertions, debugging, constants, guards, patterns, bit arrays, formatter behavior, compiler diagnostics | | [editor-and-refactoring.md](references/editor-and-refactoring.md) | Navigation, rename, generation, refactoring, completion, code actions, language-server operation | | [packages-build-and-config.md](references/packages-build-and-config.md) | Dependencies, publishing, Hex authentication and ownership, project layout, documentation, exports, CI, `gleam.toml` | | [targets-and-ffi.md](references/targets-and-ffi.md) | Erlang and JavaScript targets, shipments and escripts, source maps, externals, runtime representations, JavaScript interop | | [conventions-and-patterns.md](refere...