docs(context): the reasoning and the evidence for delivery (improvise-z2vr)

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VdfEGXA7aJ6ftMsCc9PJze

scripts/build-doc-site.mjs

@@ -69,6 +69,7 @@ const SECTIONS = [
       ["context/code/gp.md", "code/gp", "gp-tree and improvise-gp"],
       ["context/code/numtower.md", "code/numtower", "numtower, the numeric tower"],
       ["context/code/zset.md", "code/zset", "zset, the Z-set group"],
+      ["context/code/delivery.md", "code/delivery", "delivery, notices and corrections"],
       ["context/code/kb-tool.md", "code/kb-tool", "The kb tool"],
       ["context/code/tooling.md", "code/tooling", "The repository's own checkers"],
     ],
@@ -89,6 +90,7 @@ const SECTIONS = [
       ["context/test-evidence/gp.md", "test-evidence/gp", "gp-tree and improvise-gp"],
       ["context/test-evidence/numtower.md", "test-evidence/numtower", "numtower"],
       ["context/test-evidence/zset.md", "test-evidence/zset", "zset"],
+      ["context/test-evidence/delivery.md", "test-evidence/delivery", "delivery"],
       ["context/test-evidence/tooling.md", "test-evidence/tooling", "The repository's own gates"],
       ["context/test-evidence/layout-cost.md", "test-evidence/layout-cost", "Layout and keypress cost"],
       ["context/test-evidence/scale-bisect.md", "test-evidence/scale-bisect", "Scale bisect"],