feat(i18n): add Korean as a seventh end-to-end locale

CHANGELOG.md

@@ -1,5 +1,19 @@
 # Changelog
 
+## Unreleased
+
+Korean joins as a seventh interface language, and the three things that had to be fixed before it could actually work.
+
+### Added
+
+- Korean (`ko`) ships as a seventh interface language, AI-initial and community-maintained alongside French, Spanish, Italian and Polish. The whole surface speaks it: dashboard, settings, share views, the clinician report, notifications and the AI prompts. The Coach and the daily briefing take the reviewed English body with a Korean reply directive rather than a hand-curated Korean one, the same route the other community locales took before they had a safety-contract matrix of their own.
+
+### Fixed
+
+- A matcher that reads app text against text a person or a lab typed matched nothing at all in Korean. The shared fold decomposes with NFD and strips the combining marks, which turns Latin accents into plain letters — but Hangul decomposes into jamo, and jamo are not combining marks, so they survived and the folded text no longer resembled any table the app carries. Both readers of that fold were affected: the normative-claim check that grades whether a recommendation needs a citation, and the parser that reads a printed reference range. The fold recomposes now, and every Latin, Polish and German fold is byte-identical to before.
+- No Korean analyte name could resolve to a LOINC code. The key normaliser kept `[a-z0-9]` and dropped everything else, so every Korean lab name in the catalogue normalised to the empty string and the derived index held none of them — a Korean account's cholesterol result reached a FHIR export uncoded.
+- The reference-range parser now reads the tilde a Korean lab prints (`3.5~5.0`), in both the ASCII and fullwidth forms. It had the hyphen and the dashes and not the separator the reports actually use.
+
 ## [1.37.28] — 2026-08-24
 
 Eleven parts of a shared record were selectable and invisible. Ticking one and sending the link showed the recipient nothing, while the same link's PDF download carried it.

CONTRIBUTING.md

@@ -121,7 +121,7 @@ Contributors: branch off `main`; PRs target `main`.
 
 ## Translations
 
-HealthLog ships with English (`en`) and German (`de`) maintained by the project, plus French (`fr`), Spanish (`es`), Italian (`it`), and Polish (`pl`) that are **AI-initial, community-maintained**. The maintained locales are reviewed line-by-line; the community-maintained ones surface a small banner inviting users to improve them.
+HealthLog ships with English (`en`) and German (`de`) maintained by the project, plus French (`fr`), Spanish (`es`), Italian (`it`), Polish (`pl`), and Korean (`ko`) that are **AI-initial, community-maintained**. The maintained locales are reviewed line-by-line; the community-maintained ones surface a small banner inviting users to improve them.
 
 ### Improving an existing locale
 

README.md

@@ -44,7 +44,7 @@ Try the [live demo](https://demo.healthlog.dev) to see a working install — sig
 - **AI insights you own.** Daily briefing, health scores, correlations, and a conversational coach grounded in your own measurements and interpreted against cited guideline reference bands — where a value sits and what that means in plain words, never a diagnosis. The coach proposes concrete if-then plans you accept or decline, and suppresses proactive check-ins when there's nothing genuine to say. Bring your own OpenAI or Anthropic key, or point at a local endpoint (Ollama, LM Studio, vLLM) so nothing leaves your network.
 - **Clinician-ready output.** A doctor-report PDF generated client-side, a read-only HL7 FHIR R4 API, and scoped, time-limited share links you revoke after the visit.
 - **Private by construction.** AES-256-GCM encryption at rest with zero-downtime key rotation, passkey login, server-side sessions, strict CSP — and no third-party tracking anywhere.
-- **Built to be lived in.** Installable PWA with offline support, medication reminders over APNs, Telegram, ntfy, and Web Push, a sub-second dashboard on years of imported history — in English, German, Spanish, French, Italian, and Polish end to end.
+- **Built to be lived in.** Installable PWA with offline support, medication reminders over APNs, Telegram, ntfy, and Web Push, a sub-second dashboard on years of imported history — in English, German, Spanish, French, Italian, Polish, and Korean end to end.
 
 The full feature tour, integration guides, and API reference live at [docs.healthlog.dev](https://docs.healthlog.dev).
 

docs/api/openapi.yaml

@@ -20248,6 +20248,7 @@ components:
             - es
             - it
             - pl
+            - ko
         practiceName:
           type: string
           maxLength: 120
@@ -22343,6 +22344,7 @@ components:
             - fr
             - it
             - pl
+            - ko
         today:
           description: "Optional override of the reference date used to resolve relative phrases (\"tomorrow\", \"next Monday\").
             Format: `YYYY-MM-DD`. Defaults to the server's UTC day."
@@ -23234,6 +23236,7 @@ components:
             - es
             - it
             - pl
+            - ko
           description: One of the interface locales this build ships.
       required:
         - locale
@@ -27714,6 +27717,7 @@ components:
             - fr
             - it
             - pl
+            - ko
         timezone:
           type: string
           minLength: 1
@@ -27929,6 +27933,7 @@ components:
                 - fr
                 - it
                 - pl
+                - ko
             - type: "null"
         timezone:
           type: string
@@ -46021,6 +46026,7 @@ components:
                 - es
                 - it
                 - pl
+                - ko
           required:
             - locale
           additionalProperties: false
@@ -66553,6 +66559,7 @@ components:
                 - fr
                 - it
                 - pl
+                - ko
             - type: "null"
         timezone:
           type: string