fix: synchronize graph review selection and attention radii

Share review history selection between overview and graph while preserving explicit navigation and stale-response guards. Return attention for the selected review scope and interval, and align spiral events and time with that review.

Normalize radii from message rates, including partial turns, without lifting quiet turns toward peaks. Preserve one continuous helix, uniform time height, round turn sections, and smooth transitions; equal densities retain equal radii. Document current-message and hourly-bucket limitations.

Validation: 51 focused unit tests, 2 production IPC tests, Electron DOM and geometry checks, Node/Agent/Web typecheck, targeted ESLint, and diff checks passed.

Release note: Story graphs now offer synchronized review history selection, and spiral radii reflect recorded message density within the selected review.

tests/support/supervisor-layout-driver.mjs

@@ -61,6 +61,41 @@ app
       await settle()
     }
     const reports = []
+    if (process.env.GOODBUDDY_SUPERVISOR_SPIRAL) {
+      await win.loadURL(process.env.GOODBUDDY_SUPERVISOR_URL + '?spiral=1&recap=1')
+      await wait('document.querySelector(".supervisor-workspace")?.getAttribute("aria-busy") === "false"')
+      await js('document.querySelector("#supervisor-tab-graph").click()')
+      await wait('[...document.querySelectorAll("button")].some(b => b.textContent === "时间螺旋")')
+      await js('[...document.querySelectorAll("button")].find(b => b.textContent === "时间螺旋").click()')
+      await wait('JSON.parse(document.documentElement.dataset.helix || "null")?.events.length === 8')
+      const geometry = await js('JSON.parse(document.documentElement.dataset.helix)')
+      assert.equal(geometry.points.length, 1401, 'One continuous, full-span helix')
+      const radii = geometry.points.map(p => p[0])
+      assert(Math.max(...radii) - Math.min(...radii) > 40, 'Actual rendered geometry reflects uneven attention')
+      geometry.points.forEach((point, i) => assert(Math.abs(point[1] - (-215 + 430 * i / 1400)) < 1e-8, 'Height advances uniformly'))
+      assert(!geometry.events.includes('outside-review'), 'Aggregate story events outside this review are not plotted')
+      for (const [width, theme] of [[1440, 'light'], [390, 'dark']]) {
+        win.setContentSize(width, 1000)
+        await js(`document.documentElement.dataset.theme = '${theme}'`)
+        await settle()
+        const boxes = await js(`(() => {
+          const selector = document.querySelector('.supervisor-workspace__result-navigation select');
+          const r = selector.getBoundingClientRect(), gl = document.querySelector('.story-graph-3d__gl').getBoundingClientRect();
+          return { value: selector.value, left: r.left, right: r.right, width: innerWidth, canvasWidth: gl.width, canvasHeight: gl.height, pageWidth: document.documentElement.scrollWidth };
+        })()`)
+        assert.equal(boxes.value, 'fixture-result')
+        assert(boxes.left >= 0 && boxes.right <= boxes.width && boxes.pageWidth <= boxes.width, 'History selector fits without horizontal overflow')
+        assert(boxes.canvasWidth > 0 && boxes.canvasHeight > 0, 'WebGL canvas is laid out')
+      }
+      await js(`(() => { const e = document.querySelector('.supervisor-workspace__result-navigation select');
+        e.value = 'older-result'; e.dispatchEvent(new Event('change', {bubbles:true})); })()`)
+      await wait('document.querySelector(".supervisor-workspace")?.getAttribute("aria-busy") === "false" && JSON.parse(document.documentElement.dataset.helix || "null")?.events.length === 1')
+      await js('document.querySelector("#supervisor-tab-overview").click()')
+      await wait('document.querySelector(".supervisor-workspace__result-navigation select")?.value === "older-result"')
+      assert.deepEqual(errors, [])
+      console.log(JSON.stringify({ spiral: 'passed', vertices: geometry.points.length, radiusRange: [Math.min(...radii), Math.max(...radii)], widths: [1440, 390], errors }))
+      win.destroy(); app.quit(); return
+    }
     const checkDiscussion = async () => {
       const report = await js(`(() => {
         const editor = document.querySelector('.supervision-discussion-editor');