システム設計を、
もっとシンプルに。

• Text label background color selector added to right panel (9 colors including transparent)

• Edge arrow color now matches edge stroke color (per-edge dynamic markers)
• Edge label font size increased to 13px bold

• Edge hit area widened (16px transparent stroke) for easier selection
• Edge label is now required — prompt appears on connection, defaults to "link" if empty

• Area duplication: copy button in area panel duplicates the area with all bound nodes, labels, and internal edges

• Area label font size selector (small / medium / large) in right panel
• Edge arrow size restored to visible size

• Area-node/label binding: nodes and text labels inside an area move together with it
• Node label font size increased to 16px
• Edge arrow size fixed regardless of stroke width
• Edge color change now reflects immediately
• Fireworks: fixed negative radius error and canvas not clearing after animation

• Renamed app from FlowCraft to BluePrint
• New favicon: blueprint-style SVG icon
• Save file renamed to blueprint.txt

• Header moved into left panel — more canvas space
• TIPS bar: right-to-left slide animation, light blue theme
• Version button with release notes popup
• Bug fixes: SVG_OFF, acw, fw-canvas timing errors resolved

• Edge style editor: stroke width, dash pattern, color (9 swatches)
• Canvas background changed to pure white
• TIPS slider with auto-rotate and dot navigation

• Mouse wheel zoom (0.2×–3.0×), centered on cursor
• Edge preview line while dragging from port
• Admin panel node with PC display SVG icon
• Left panel collapse toggle button
• Free text labels: place, drag, resize font, delete

• DB node: cylinder SVG icon
• Server node: rack-mount SVG icon
• Edges render behind nodes (SVG layer reordered)
• Canvas pan: no position clamp, scroll freely in all directions

• Initial release: node palette with 7 types
• Orthogonal edge routing with labels
• Layer areas (Shift+drag) with color and name editing
• Canvas inertia pan, icon picker, save/load to local .txt