release 0.3.17 plan: the decisive read passes (headers through in one session)

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

docs/plans/release-0.3.17.md

@@ -46,4 +46,6 @@ Found on the way: master's build tools ended silently on a tree without rust-too
 - 03:50Z start (T0 03:50:02Z), headers-proof IBD from 213.173.107.74 on one session throughout; 04:07Z headers 61 percent (69,668), 4 peers, zero SendPingsFlow lines, zero "completed with error", zero reject or wrong-version lines (the one match is the digest banner). 12153428's guard fired at 12 minutes twice; this node was 5 minutes past that mark on one session. Clock: headers through about 04:17Z, blocks synced 04:35Z, ten minutes of mining reads to 04:45Z, then the relay and poison cases.
 - Fault 2 of the 12153428 canary (the "window below epoch 43 seed block ... incomplete" WARN flood) is f1ea7a38's own line (consensus/src/processes/class_signal.rs:217 in the 0.3.15 tree): live behaviour on every fresh headers IBD since publish 2, not a hotfix regression and not held against it. On this node 49,844 lines, 32 MB in 15 minutes, all epoch 43, bounded by the IBD (a one-time 30 to 60 MB on a fresh install; the supervisor trims node logs on standing boxes). The 0.3.18 node (6e4ace3f) says it once per epoch per process.
 
+- **Headers through, 04:25:25Z: the decisive read PASSES.** 100 percent (114,000 headers) in one IBD session from 213.173.107.74, pruning point proof and SMT state imported, SendPingsFlow 0 the whole 35 minutes (T0 03:50:02Z), three times the 12 minutes 12153428's guard allowed; the WARN flood held the pace to 40 to 110 headers a second. Block bodies next: synced about 04:45Z, then the ten minutes of mining reads and the cases.
+
 (the remaining lines as they land; the deploy goes on the cases line)