feat: land superpaper v1 notes scaffold

Add the ledger schema, class router, lint codes, ingest/build
pipeline, and three work-tree examples: align derivation,
superfig delegation, and supertensor delegation.

examples/pipeline-delegate/notes/figures/F1/F1.request.md

@@ -0,0 +1,27 @@
+# Figure request F1
+toolkit: superfig
+language: cjk
+claim: 一次前向是 x → f_θ → ŷ；损失不在主路上。
+grammar: pipeline
+work_rel_dir: figures/F1
+
+## Roles
+- {role: input,  color: sfTeal}
+- {role: model,  color: sfOrange}
+- {role: loss,   color: sfCoral}
+- {role: output, color: sfViolet}
+
+## Flow (cursor). \sfconn 没有 endpoints。
+stage: {name: SA, text: "推理流程：一次前向"}
+row: {name: R1, height: 16mm}
+in_row:
+  - {macro: sfnode, name: x, role: input,  label: "输入 $x$", w: 16mm, h: 12mm}
+  - {macro: sfconn, name: e1, label: 预处理}
+  - {macro: sfnode, name: f, role: model,  label: "模型 $f_\\theta$", w: 18mm, h: 12mm}
+  - {macro: sfconn, name: e2, label: logits}
+  - {macro: sfnode, name: y, role: output, label: "预测 $\\hat y$", w: 16mm, h: 12mm}
+
+## Fixed topology
+- {macro: sfnode, name: s, role: loss, label: "损失 $L$", w: 14mm, h: 12mm,
+   at: "($(y.south)+(0,-22mm)$)"}
+- {macro: sfarrowlabel, from: "y.south", to: "s.north", label: "$L(\\hat y, y)$"}