feat: Add quick wins batch (#42, #43, #25, #35, #20, #36, #39)

- #42: Allow spools heavier than theoretical max (remove weight clamps)
- #43: Show filament custom fields on spool detail page
- #25: Sort spools by custom fields and remaining weight
- #35: Global search box for spool list
- #20: Gallery view for spools (color grid with progress bars)
- #36: Spool-level color override with ColorPicker
- #39: Cost analytics endpoint, total spent & avg cost/kg stats
- Fix: Filament select refresh after inline creation
- Fix: Parse temperatures from filament comments

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

client/public/locales/en/common.json

@@ -34,6 +34,8 @@
         "notAccessTitle": "You don't have permission to access",
         "hideColumns": "Hide Columns",
         "clearFilters": "Clear Filters",
+        "galleryView": "Gallery",
+        "tableView": "Table",
         "viewAll": "View All"
     },
     "warnWhenUnsavedChanges": "Are you sure you want to leave? You have unsaved changes.",
@@ -179,6 +181,7 @@
     },
     "spool": {
         "spool": "Spools",
+        "search_placeholder": "Search by name, material, vendor, location...",
         "fields": {
             "id": "ID",
             "filament_name": "Filament",
@@ -198,6 +201,7 @@
             "initial_weight": "Initial Weight",
             "spool_weight": "Empty Weight",
             "extra_weight": "Extra Weight",
+            "color_hex": "Color Override",
             "location": "Location",
             "lot_nr": "Lot Nr",
             "first_used": "First Used",
@@ -205,6 +209,7 @@
             "registered": "Registered",
             "comment": "Comment",
             "archived": "Archived",
+            "filament_fields": "Filament Custom Fields",
             "adjustment_history": "Adjustment History",
             "show_history": "Show History",
             "print_history": "Print History",
@@ -225,6 +230,7 @@
             "initial_weight": "The initial weight of filament on the spool (net weight). Will use the weight from the filament object if not set.",
             "spool_weight": "The weight of the spool when it is empty. Leave empty to use the value from the filament or the manufacturer.",
             "extra_weight": "Additional weight to account for when measuring, such as DryPods, custom spool holders, or other accessories.",
+            "color_hex": "Override the filament color for this specific spool.",
             "location": "Where the spool is located if you have multiple locations where you store your spools.",
             "lot_nr": "Manufacturer's lot number. Can be used to ensure a print has consistent color if multiple spools are used.",
             "external_filament": "You have selected a filament from the external database. A filament object (and possibly a manufacturer object) will be created automatically when you create this spool. This can create duplicate filament objects if you have already created a filament object for this filament."
@@ -349,7 +355,10 @@
             "created_success": "Created filament \"{{name}}\"",
             "vendor_placeholder": "Select a manufacturer",
             "name_placeholder": "E.g. Matte Black",
-            "material_placeholder": "PLA, PETG, ABS, etc."
+            "material_placeholder": "PLA, PETG, ABS, etc.",
+            "parse_temps": "Parse temps from comment",
+            "temps_parsed": "Temperature fields updated from comment",
+            "no_temps_found": "No temperature patterns found in comment"
         },
         "buttons": {
             "add_spool": "Add Spool"
@@ -416,7 +425,9 @@
             "total_filaments": "Filament Types",
             "total_vendors": "Vendors",
             "total_weight": "Total Remaining",
-            "total_value": "Inventory Value"
+            "total_value": "Inventory Value",
+            "total_spent": "Total Spent",
+            "avg_cost_per_kg": "Avg Cost/kg"
         },
         "analytics": {
             "title": "Usage Analytics",
@@ -425,6 +436,7 @@
             "90_days": "90 Days",
             "total_used": "Total used: {{weight}} kg",
             "used": "Used",
+            "spent": "Spent",
             "by_material": "Usage by Material"
         }
     },