fix(illness): keep chronic conditions out of rest mode

A chronic ongoing condition has no end date, so counting it as rest mode
kept the account in it for good: Day N counted from an onset years back,
cadence nudges never resumed and every streak gap since the onset was
bridged. Only active episodes that are not CHRONIC_ONGOING (acute,
recurring, flare) now trigger rest mode, and Day N counts from the
earliest of those. The achievements streak freeze applies the same
filter to its own episode query.

Chronic conditions stay context: a coincident vital deviation is still
framed as explained by any active episode, and the Coach block and the
briefing still name them, with restMode false.

Refs #1216

src/lib/openapi/routes/daily.ts

@@ -210,7 +210,7 @@ export const dailyDigestResponse = z
       })
       .nullable()
       .describe(
-        "Rest Mode: present while an illness episode is active and the illness module is on, else null. Additive since v1.40.",
+        "Rest Mode: present while an illness episode that is not chronic ongoing (acute, recurring or flare) is active and the illness module is on, else null. A chronic ongoing condition alone never sets it; `day` counts from the earliest onset among the episodes that do. Additive since v1.40.",
       ),
     line: z
       .string()

src/lib/openapi/routes/insights/schemas.ts

@@ -2204,7 +2204,7 @@ export const healthScoreReport = z
       .nullable()
       .optional()
       .describe(
-        "Set on every response this route produces (null when no illness episode is active). Rest Mode FRAMES the score and never changes it: the number above is left exactly as computed and this attaches the value-free context. Resolved as of the scored window, not a fresh now.",
+        "Set on every response this route produces (null when no illness episode is active, or only chronic ongoing ones are: a condition the person lives with frames a dip but never puts the account into Rest Mode). Rest Mode FRAMES the score and never changes it: the number above is left exactly as computed and this attaches the value-free context. Resolved as of the scored window, not a fresh now.",
       ),
   })
   .meta({