docs(readme): replace static chart images with live SRS API badges and update description.

README.md

@@ -6,24 +6,25 @@
   <a href="https://x.com/basedprad"><img alt="follow" src="https://shieldcn.dev/x/follow/basedprad.svg" /></a>
   <a href="https://leetcode.com/progress"><img alt="Custom badge" src="https://shieldcn.dev/badge/view-@prdlk.svg?logo=leetcode" /></a>
   <a href="https://lc.prad.nu"><img alt="badge" src="https://shieldcn.dev/badge/Read-Documentation.svg?logo=lu%3ABook" /></a>
+  <a href="https://lc.prad.nu/progress"><img alt="gate pass rate" src="https://srs-api.prdlk.workers.dev/badge/gate.svg" /></a>
 </p>
 
 <p align="center">
   <sub>8-week interview-prep fight camp. Each phase is a milestone; each topic an issue; each problem a sub-issue.<br>
-  Charts are live from the SRS Worker — the daily digest email drives the schedule.</sub>
+  New topic Mon–Fri, gate on Saturday, Sunday off — every solve comes back at <strong>+3</strong> and <strong>+7</strong> days,
+  the two windows that keep the rest day clear (a Thursday solve's +3 slides to Monday).<br>
+  Charts are live from the SRS Worker, never committed: pushing a solution or tapping the daily digest moves them within ~5 min.</sub>
 </p>
 
-<p align="center">
-  <img alt="phase progress" src="https://shieldcn.dev/chart/npm/zod.svg" />
-</p>
-
-<p align="center">
-  <img alt="SRS ladder" src="https://shieldcn.dev/chart/npm/zod.svg" />
-</p>
-
-<p align="center">
-  <img alt="attempt heatmap" src="https://shieldcn.dev/chart/npm/zod.svg" />
-</p>
+<table align="center">
+  <tr>
+    <td colspan="2" align="center"><img alt="phase progress" width="100%" src="https://srs-api.prdlk.workers.dev/chart/progress.svg" /></td>
+  </tr>
+  <tr>
+    <td align="center" width="53%"><img alt="SRS ladder — new / +3 / +7 / retired" width="100%" src="https://srs-api.prdlk.workers.dev/chart/ladder.svg" /></td>
+    <td align="center" width="47%"><img alt="attempt heatmap" width="100%" src="https://srs-api.prdlk.workers.dev/chart/heatmap.svg" /></td>
+  </tr>
+</table>
 
 ## Phase I — Linear Structures · Weeks 1–2