feat(cycle): premium cycle ring, BBT chart, and full read-state coverage

Finish the cycle web vertical's signature surfaces:

- Rebuild the cycle wheel to the wellness-ring premium signature — a
  clockwise clock-wipe that draws the phase arcs on from the 12-o'clock
  day-0 origin, a phase-tinted bloom on the active arc, the shared
  specular sheen, a day-number count-up, and a soft current-day marker
  halo. All on the wellness-tile surface, gated once per session and
  zeroed under prefers-reduced-motion.
- Add the basal-body-temperature chart to the predictions tab: the
  current-cycle BBT series with phase-tinted points, fertility signs in
  the tooltip, and an estimated-ovulation reference line (suppressed in
  raw-chart mode). Surface basalBodyTempC + ovulation-test + mucus on the
  calendar day DTO so the chart reads from the existing calendar load.
- Cover the read states the prediction/disclaimer surfaces were missing:
  pass the disclaimer to the predictions panel, render it on the calendar
  tab, add per-tab error + retry, and gate the settings spinner.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

docs/api/openapi.yaml

@@ -5199,6 +5199,29 @@ components:
                     type: boolean
                   confidence:
                     type: number
+                  basalBodyTempC:
+                    anyOf:
+                      - type: number
+                      - type: "null"
+                  ovulationTest:
+                    anyOf:
+                      - type: string
+                        enum:
+                          - NEGATIVE
+                          - POSITIVE_LH_SURGE
+                          - ESTROGEN_SURGE
+                          - INDETERMINATE
+                      - type: "null"
+                  cervicalMucus:
+                    anyOf:
+                      - type: string
+                        enum:
+                          - DRY
+                          - STICKY
+                          - CREAMY
+                          - WATERY
+                          - EGG_WHITE
+                      - type: "null"
                 required:
                   - date
                   - phase
@@ -5209,6 +5232,9 @@ components:
                   - flow
                   - hasSymptoms
                   - confidence
+                  - basalBodyTempC
+                  - ovulationTest
+                  - cervicalMucus
                 additionalProperties: false
             meta:
               type: object