feat(menu): globalize output-format picker + tighter asset wizard

iconHelpers.js:
* Add SVG.outputProcess/outputJson/outputCsv/outputInflux icons.
* Add renderOutputFormatPicker(select, holder) shared helper.
* Add idempotent upgradeOutputFormatSelects() that scans for
  node-input-processOutputFormat / dbaseOutputFormat selects and replaces
  them with icon pickers — no per-node HTML edits required.
* Redesign SVG.upstream/atEquipment/downstream to a pump volute + sensor
  marker matching the rotatingMachine pump banner style.

menu/index.js:
* Auto-invoke upgradeOutputFormatSelects from MenuManager's initEditor
  wrapper so every node inherits the picker.

asset.js:
* Tighter chip styling: 1px border, 4px radius, 3x8 padding, no uppercase
  transform — single-line "Label: Value" instead of stacked card.
* Narrower Asset Tag input (max 200px); wizard max-width 460px.
* Restore curve preview to 220x110 (was over-compacted).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/menu/index.js

@@ -175,6 +175,18 @@ class MenuManager {
                         } catch (${type}Error) {
                             console.error('Error initializing ${type} menu for ${nodeName}:', ${type}Error);
                         }`).join('')}
+
+                        // Platform-wide: upgrade output-format <select>s
+                        // (process/dbase) to icon pickers. Idempotent — no-op
+                        // for nodes whose HTML already wires the picker, and
+                        // skips when the selects aren't present.
+                        try {
+                            if (window.EVOLV && window.EVOLV.iconHelpers && window.EVOLV.iconHelpers.upgradeOutputFormatSelects) {
+                                window.EVOLV.iconHelpers.upgradeOutputFormatSelects();
+                            }
+                        } catch (outputUpgradeError) {
+                            console.error('Error upgrading output-format selects for ${nodeName}:', outputUpgradeError);
+                        }
                     } catch (editorError) {
                         console.error('Error in main editor initialization for ${nodeName}:', editorError);
                     }