Move docs/ package mirror into document-navigator plugin

Relocate the ~6k-file docs tree from the repo root into
plugins/document-navigator/docs/ so the plugin is self-contained and
portable. docs/superpowers/ (specs and plans) stays at the repo root.

Moved via cp+rm rather than git mv because directory rename() fails with
EPERM on this WSL /mnt DrvFs mount; git rename-detection pairs the
identical-content files at commit time.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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2026-05-30 01:10:00 +01:00
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# @suaveplan/domain-normalizer - Normalisation, matching, and alias-canonicalisation for internet domain names
## Summary
Normalisation, matching, and alias-canonicalisation for internet domain names. Given heterogeneous URL or domain input — including common mobile/CDN subdomains and 31 built-in alias mappings (e.g. `m.youtube.com → youtube.com`, `old.reddit.com → reddit.com`) — this package produces a canonical registrable domain via `tldts`, strips `www`/`m`/`mobile` prefixes, resolves the alias map, and returns structured `NormalizedDomain` objects. It also provides Levenshtein-based similarity scoring (`computeSimilarity`), fuzzy matching (`matchDomains`), and a `groupDomains` function that clusters a mixed list by canonical root domain. Use this package for deduplicating contact email domains, canonicalising URLs before storage, and building domain-level blocklists. For full entity deduplication across arbitrary fields use `@suaveplan/dedup`; for MIME or URL content-type detection use `@suaveplan/mime`.
<!-- begin:auto-docs -->
## Documentation tree
- [aliases](./src/core/aliases/aliases.md) — <!-- begin:auto-docs --> _(no submodules)_ <!-- end:auto-docs -->
- [aliases](./src/core/aliases/aliases.md) — <!-- begin:auto-docs --> _(no submodules)_ <!-- end:auto-docs -->
- [matcher](./src/core/matcher/matcher.md) — <!-- begin:auto-docs --> _(no submodules)_ <!-- end:auto-docs -->
- [matcher](./src/core/matcher/matcher.md) — <!-- begin:auto-docs --> _(no submodules)_ <!-- end:auto-docs -->
- [normalizer](./src/core/normalizer/normalizer.md) — <!-- begin:auto-docs --> _(no submodules)_ <!-- end:auto-docs -->
- [normalizer](./src/core/normalizer/normalizer.md) — <!-- begin:auto-docs --> _(no submodules)_ <!-- end:auto-docs -->
- [errors](./src/errors/domain-normalizer-error.md) — <!-- begin:auto-docs --> _(no submodules)_ <!-- end:auto-docs -->
- [domain-normalizer-error](./src/errors/domain-normalizer-error.md) — <!-- begin:auto-docs --> _(no submodules)_ <!-- end:auto-docs -->
- [types](./src/types/domain-normalizer.md) — <!-- begin:auto-docs --> _(no submodules)_ <!-- end:auto-docs -->
- [domain-normalizer](./src/types/domain-normalizer.md) — <!-- begin:auto-docs --> _(no submodules)_ <!-- end:auto-docs -->
<!-- end:auto-docs --> - [aliases](./src/core/aliases/aliases.md) — <!-- begin:auto-docs --> _(no submodules)_- [matcher](./src/core/matcher/matcher.md) — <!-- begin:auto-docs --> _(no submodules)_- [matcher](./src/core/matcher/matcher.md) — <!-- begin:auto-docs --> _(no submodules)_- [normalizer](./src/core/normalizer/normalizer.md) — <!-- begin:auto-docs --> _(no submodules)_- [normalizer](./src/core/normalizer/normalizer.md) — <!-- begin:auto-docs --> _(no submodules)_- [errors](./src/errors/domain-normalizer-error.md) — <!-- begin:auto-docs --> _(no submodules)_- [domain-normalizer-error](./src/errors/domain-normalizer-error.md) — <!-- begin:auto-docs --> _(no submodules)_- [types](./src/types/domain-normalizer.md) — <!-- begin:auto-docs --> _(no submodules)_- [domain-normalizer](./src/types/domain-normalizer.md) — <!-- begin:auto-docs --> _(no submodules)_- [aliases](./src/core/aliases/aliases.md) — <!-- begin:auto-docs --> _(no submodules)_- [matcher](./src/core/matcher/matcher.md) — <!-- begin:auto-docs --> _(no submodules)_- [matcher](./src/core/matcher/matcher.md) — <!-- begin:auto-docs --> _(no submodules)_- [normalizer](./src/core/normalizer/normalizer.md) — <!-- begin:auto-docs --> _(no submodules)_- [normalizer](./src/core/normalizer/normalizer.md) — <!-- begin:auto-docs --> _(no submodules)_- [errors](./src/errors/domain-normalizer-error.md) — <!-- begin:auto-docs --> _(no submodules)_- [domain-normalizer-error](./src/errors/domain-normalizer-error.md) — <!-- begin:auto-docs --> _(no submodules)_- [types](./src/types/domain-normalizer.md) — <!-- begin:auto-docs --> _(no submodules)_- [domain-normalizer](./src/types/domain-normalizer.md) — <!-- begin:auto-docs --> _(no submodules)_- [aliases](./src/core/aliases/aliases.md) — <!-- begin:auto-docs --> _(no submodules)_- [matcher](./src/core/matcher/matcher.md) — <!-- begin:auto-docs --> _(no submodules)_- [matcher](./src/core/matcher/matcher.md) — <!-- begin:auto-docs --> _(no submodules)_- [normalizer](./src/core/normalizer/normalizer.md) — <!-- begin:auto-docs --> _(no submodules)_- [normalizer](./src/core/normalizer/normalizer.md) — <!-- begin:auto-docs --> _(no submodules)_- [errors](./src/errors/domain-normalizer-error.md) — <!-- begin:auto-docs --> _(no submodules)_- [domain-normalizer-error](./src/errors/domain-normalizer-error.md) — <!-- begin:auto-docs --> _(no submodules)_- [types](./src/types/domain-normalizer.md) — <!-- begin:auto-docs --> _(no submodules)_- [domain-normalizer](./src/types/domain-normalizer.md) — <!-- begin:auto-docs --> _(no submodules)_- [aliases](./src/core/aliases/aliases.md) — <!-- begin:auto-docs --> _(no submodules)_- [matcher](./src/core/matcher/matcher.md) — <!-- begin:auto-docs --> _(no submodules)_ - [matcher](./src/core/matcher/matcher.md) — <!-- begin:auto-docs --> _(no submodules)_- [normalizer](./src/core/normalizer/normalizer.md) — <!-- begin:auto-docs --> _(no submodules)_ - [normalizer](./src/core/normalizer/normalizer.md) — <!-- begin:auto-docs --> _(no submodules)_- [errors](./src/errors/domain-normalizer-error.md) — <!-- begin:auto-docs --> _(no submodules)_ - [domain-normalizer-error](./src/errors/domain-normalizer-error.md) — <!-- begin:auto-docs --> _(no submodules)_- [types](./src/types/domain-normalizer.md) — <!-- begin:auto-docs --> _(no submodules)_ - [domain-normalizer](./src/types/domain-normalizer.md) — <!-- begin:auto-docs --> _(no submodules)_
## Modules
| Module | Description |
|---|---|
| [`./src/core/normalizer/normalizer.md`](./src/core/normalizer/normalizer.md) | Domain/URL normalisation with tldts, prefix stripping, alias resolution |
| [`./src/core/aliases/aliases.md`](./src/core/aliases/aliases.md) | Built-in alias map and canonical lookup functions |
| [`./src/core/matcher/matcher.md`](./src/core/matcher/matcher.md) | Levenshtein similarity scoring, domain grouping, and matching |
| [`./src/errors/domain-normalizer-error.md`](./src/errors/domain-normalizer-error.md) | Local error class and stable code registry |
| [`./src/types/domain-normalizer.md`](./src/types/domain-normalizer.md) | Shared type definitions (NormalizerConfig, NormalizedDomain, MatchResult) |
## Quick start
```ts
import { normalizeDomain, matchDomains, groupDomains } from "@suaveplan/domain-normalizer";
// Normalize a domain
const result = normalizeDomain("m.youtube.com");
console.log(result.normalized); // "youtube.com"
// Normalize a full URL
import { normalizeUrl } from "@suaveplan/domain-normalizer";
const urlResult = normalizeUrl("https://old.reddit.com/r/programming");
console.log(urlResult.normalized); // "reddit.com"
// Check similarity
const match = matchDomains("youtube.com", "m.youtube.com");
console.log(match.isMatch); // true
// Group a list of mixed domains
const groups = groupDomains(["m.youtube.com", "youtube.com", "reddit.com", "old.reddit.com"]);
// Map { "youtube.com" => [...], "reddit.com" => [...] }
```
## Subpath exports
```ts
import { normalizeDomain } from "@suaveplan/domain-normalizer/normalizer";
import { getCanonicalDomain } from "@suaveplan/domain-normalizer/aliases";
import { levenshteinDistance } from "@suaveplan/domain-normalizer/matcher";
import { DomainNormalizerError } from "@suaveplan/domain-normalizer/errors";
```