SPipe 데모 v2 (2026-10-30) 서버 배포본

- SPipe_server_2026-10-30.zip 내용을 풀어서 등록 (압축 파일은 올리지 않음)
- README에 데모 v2 서버 업데이트 순서 추가, 저장소에 없는 문서 목차 정리
- 패치내역을 docs/로 이동, _worklog.md 추가
- 임시 파일(backend/temp.*)과 API 키가 든 파일은 제외

src/NumberField.tsx

@@ -0,0 +1,46 @@
+import React, { useState } from 'react';
+import { formatEditableNumber } from './unitSystem';
+
+interface NumberFieldProps extends Omit<React.InputHTMLAttributes<HTMLInputElement>, 'value' | 'onChange' | 'type'> {
+  /** Value in display units. */
+  value: number;
+  /** Called with the parsed display-unit number on blur / Enter only. */
+  onCommit: (value: number) => void;
+}
+
+/**
+ * Numeric input for unit-converted values. A controlled <input type=number>
+ * whose value is display(model(typed)) gets rewritten mid-typing whenever the
+ * ft/m or flow-unit round trip isn't exact (typing "216.4" in a US model ended
+ * up as 3.9999999999999996). Keeping the typed text as a local draft and
+ * committing only on blur/Enter avoids that round trip while editing.
+ */
+export const NumberField: React.FC<NumberFieldProps> = ({ value, onCommit, onBlur, onKeyDown, ...rest }) => {
+  const [draft, setDraft] = useState<string | null>(null);
+
+  const commit = () => {
+    if (draft === null) return;
+    const parsed = Number(draft);
+    setDraft(null);
+    if (draft.trim() !== '' && Number.isFinite(parsed)) onCommit(parsed);
+  };
+
+  return (
+    <input
+      {...rest}
+      type="text"
+      inputMode="decimal"
+      value={draft ?? formatEditableNumber(value)}
+      onChange={(e) => setDraft(e.target.value)}
+      onBlur={(e) => {
+        commit();
+        onBlur?.(e);
+      }}
+      onKeyDown={(e) => {
+        if (e.key === 'Enter') commit();
+        if (e.key === 'Escape') setDraft(null);
+        onKeyDown?.(e);
+      }}
+    />
+  );
+};