Merge branch 'fix/encrypt-free-text-and-local-ai' into release/v1.39.3

# Conflicts:
#	src/app/api/import/csv/route.ts

src/lib/openapi/routes/auth.ts

@@ -2011,7 +2011,7 @@ export const authPaths: NonNullable<ZodOpenApiObject["paths"]> = {
       responses: {
         "302": {
           description:
-            "Always a redirect. To the provider on success. On failure to `/auth/login?error=<reason>` (browser) or `healthlog://oidc-callback?error=<reason>` (native), where reason is one of `oidc_disabled`, `oidc_rate_limited`, `oidc_invalid_request`, `oidc_failed`.",
+            "Always a redirect. To the provider on success. On failure to `/auth/login?error=<reason>` (browser) or `healthlog://oidc-callback?error=<reason>` (native), where reason is one of `oidc_disabled`, `oidc_rate_limited`, `oidc_invalid_request`, `oidc_failed`. The provider then returns to the callback (not listed here, because the identity provider drives it rather than a client), which ends the native leg at `healthlog://oidc-callback` with `code=<hlh_…>`, with `mfa_ticket=<ticket>&methods=<list>`, or with `error=<reason>`, where reason is one of `oidc_disabled`, `oidc_rate_limited`, `oidc_denied`, `oidc_no_email`, `oidc_email_unverified`, `oidc_identity_conflict`, `oidc_registration_disabled`, `oidc_failed`. The reasons are this exact snake_case vocabulary on both legs; a client maps a value it does not know to a generic sign-in failure.",
         },
       },
     },

src/lib/openapi/routes/import.ts

@@ -183,7 +183,7 @@ export const importPaths: NonNullable<ZodOpenApiObject["paths"]> = {
       tags: ["Import"],
       summary: "Import measurements from CSV",
       description:
-        "Bulk-import measurements from a CSV file (web cold-start escape hatch). Body is raw `text/csv` (≤ 16 MB, ≤ 10 000 valid rows). Header (order-independent): `type,value,unit,measuredAt[,glucoseContext,notes,externalId]`. `measuredAt` must carry an explicit ISO-8601 offset and is bounded (no future beyond a 5-min skew, no instant before 1900). Glucose accepts `mmol/L` (converted to canonical `mg/dL`); weight accepts `lb` (converted to `kg`). `glucoseContext` is optional on a `BLOOD_GLUCOSE` row — a blank cell stores no context, which is the normal shape of a continuous-sensor export; a non-empty value is still checked against the enum, and the column is refused on any other type. An `externalId` column makes re-upload idempotent (upsert on `(userId, type, source=IMPORT, externalId)`); without it a re-upload duplicates. `?dryRun=1` validates + previews without writing. Shares the 5/hour `import:` rate bucket.",
+        "Bulk-import measurements from a CSV file (web cold-start escape hatch). Body is raw `text/csv` (≤ 16 MB, ≤ 10 000 valid rows). Header (order-independent): `type,value,unit,measuredAt[,glucoseContext,notes,externalId]`. `measuredAt` must carry an explicit ISO-8601 offset and is bounded (no future beyond a 5-min skew, no instant before 1900). Glucose accepts `mmol/L` (converted to canonical `mg/dL`); weight accepts `lb` (converted to `kg`). `glucoseContext` is optional on a `BLOOD_GLUCOSE` row — a blank cell stores no context, which is the normal shape of a continuous-sensor export; a non-empty value is still checked against the enum, and the column is refused on any other type. Re-uploading a file is idempotent. With an `externalId` column a row upserts on `(userId, type, source=IMPORT, externalId)`: a changed row is `updated`, an unchanged one is `skipped` with reason `duplicate` and not written. Without it a row is deduplicated on `(type, measuredAt)` and a repeat is `skipped` / `duplicate`. Writes commit in chunks rather than as one transaction; a failure part-way leaves earlier chunks written, and re-uploading the same file completes the rest. `?dryRun=1` validates + previews without writing. Shares the 5/hour `import:` rate bucket.",
       parameters: [
         {
           name: "dryRun",