fix: replace broken add-filter button with stepped filter builder

- Fixed popover z-index: uses fixed positioning with z-50 above backdrop
- Stepped flow: select field → set operator (is/is_not) → choose/write value → Apply
- Removed old inline CF value inputs (handled inline in the new flow)
- Fixed filter persistence: clear filters when navigating away from saved view
- Fixed home redirect: check for default dashboard on load

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

web/src/app/page.tsx

@@ -159,6 +159,9 @@ function TicketWorkbenchContent() {
   const [saveViewOpen, setSaveViewOpen] = useState(false);
   const [saveViewName, setSaveViewName] = useState("");
   const [addFilterOpen, setAddFilterOpen] = useState(false);
+  const [addFilterField, setAddFilterField] = useState<string | null>(null); // which field type is selected
+  const [addFilterOperator, setAddFilterOperator] = useState("is");
+  const [addFilterValue, setAddFilterValue] = useState("");
 
   const [dialogOpen, setDialogOpen] = useState(false);
   const [newSubject, setNewSubject] = useState("");
@@ -653,10 +656,18 @@ function TicketWorkbenchContent() {
                     </button>
                   </span>
                 ))}
-              <div className="relative">
+              <div>
                 <button
                   type="button"
-                  onClick={() => setAddFilterOpen((prev) => !prev)}
+                  onClick={(event) => {
+                    const rect = event.currentTarget.getBoundingClientRect();
+                    const popover = document.getElementById("add-filter-popover");
+                    if (popover) {
+                      popover.style.left = `${rect.left}px`;
+                      popover.style.top = `${rect.bottom + 4}px`;
+                    }
+                    setAddFilterOpen((prev) => !prev);
+                  }}
                   className="inline-flex h-7 items-center gap-1 rounded border border-dashed border-border px-2 text-xs font-medium text-muted-foreground hover:border-ring hover:text-foreground transition-colors"
                 >
                   <PlusIcon className="h-3 w-3" />
@@ -664,100 +675,179 @@ function TicketWorkbenchContent() {
                 </button>
                 {addFilterOpen && (
                   <>
-                    <div className="fixed inset-0 z-10" onClick={() => setAddFilterOpen(false)} />
+                    <div
-                    <div className="absolute left-0 top-full z-20 mt-1 w-52 rounded-md border border-border bg-card p-1 shadow-lg">
+                      className="fixed inset-0 z-40"
-                      <div className="px-2 py-1.5 text-[10px] font-semibold uppercase text-muted-foreground">Queue</div>
+                      onClick={() => {
-                      {queues.map((q) => (
+                        setAddFilterOpen(false);
+                        setAddFilterField(null);
+                      }}
+                    />
+                    <div
+                      id="add-filter-popover"
+                      className="fixed z-50 w-52 rounded-md border border-border bg-popover p-1 shadow-lg"
+                    >
+                      {!addFilterField ? (
+                        /* Step 1: choose field */
+                        <>
                           <button
-                          key={`q:${q.id}`}
                             type="button"
                             className="w-full rounded px-2 py-1.5 text-left text-xs text-foreground hover:bg-accent"
                             onClick={() => {
                               if (!filters.find((f) => f.field === "queue")) {
-                              setFilters((prev) => [...prev, {
+                                setAddFilterField("queue");
-                                id: crypto.randomUUID(),
+                                setAddFilterOperator("is");
-                                field: "queue",
+                                setAddFilterValue("");
-                                operator: "is",
+                              } else {
-                                value: q.id,
-                                label: buildFilterLabel("queue", "is", q.name),
-                              }]);
-                            }
                                 setAddFilterOpen(false);
+                              }
                             }}
                           >
-                          {q.name}
+                            Queue
                           </button>
-                      ))}
-                      <div className="mt-0.5 border-t border-border pt-0.5" />
-                      <div className="px-2 py-1.5 text-[10px] font-semibold uppercase text-muted-foreground">Owner</div>
                           <button
                             type="button"
                             className="w-full rounded px-2 py-1.5 text-left text-xs text-foreground hover:bg-accent"
                             onClick={() => {
                               if (!filters.find((f) => f.field === "owner")) {
-                            setFilters((prev) => [...prev, {
+                                setAddFilterField("owner");
-                              id: crypto.randomUUID(),
+                                setAddFilterOperator("is");
-                              field: "owner",
+                                setAddFilterValue("");
-                              operator: "is",
+                              } else {
-                              value: "unassigned",
-                              label: buildFilterLabel("owner", "is", "Unassigned"),
-                            }]);
-                          }
                                 setAddFilterOpen(false);
+                              }
                             }}
                           >
-                        Unassigned
+                            Owner
                           </button>
-                      {users.map((u) => (
-                        <button
-                          key={`o:${u.id}`}
-                          type="button"
-                          className="w-full rounded px-2 py-1.5 text-left text-xs text-foreground hover:bg-accent"
-                          onClick={() => {
-                            if (!filters.find((f) => f.field === "owner")) {
-                              setFilters((prev) => [...prev, {
-                                id: crypto.randomUUID(),
-                                field: "owner",
-                                operator: "is",
-                                value: u.id,
-                                label: buildFilterLabel("owner", "is", u.username),
-                              }]);
-                            }
-                            setAddFilterOpen(false);
-                          }}
-                        >
-                          {u.username}
-                        </button>
-                      ))}
-                      {customFields.length > 0 && (
-                        <>
-                          <div className="mt-0.5 border-t border-border pt-0.5" />
-                          <div className="px-2 py-1.5 text-[10px] font-semibold uppercase text-muted-foreground">Custom field</div>
                           {customFields.map((cf) => (
                             <button
-                              key={`cf:${cf.id}`}
+                              key={`cf-field-${cf.id}`}
                               type="button"
                               className="w-full rounded px-2 py-1.5 text-left text-xs text-foreground hover:bg-accent"
                               onClick={() => {
-                                const cfFilter: Filter = {
+                                setAddFilterField(`cf.${cf.key}`);
-                                  id: crypto.randomUUID(),
+                                setAddFilterOperator("is");
-                                  field: `cf.${cf.key}`,
+                                setAddFilterValue("");
-                                  operator: "is",
-                                  value: "",
-                                  label: `${cf.name} is ...`,
-                                };
-                                setFilters((prev) => [...prev, cfFilter]);
-                                setAddFilterOpen(false);
-                                setTimeout(() => {
-                                  const input = document.getElementById(`cf-value-${cfFilter.id}`) as HTMLInputElement;
-                                  input?.focus();
-                                }, 50);
                               }}
                             >
                               {cf.name}
                             </button>
                           ))}
                         </>
+                      ) : (
+                        /* Step 2: operator + value */
+                        <div className="space-y-2 p-1">
+                          <div className="flex items-center gap-1 text-xs">
+                            <button
+                              type="button"
+                              onClick={() => {
+                                setAddFilterField(null);
+                              }}
+                              className="text-muted-foreground hover:text-foreground"
+                            >
+                              ←
+                            </button>
+                            <span className="font-medium text-foreground">
+                              {addFilterField.startsWith("cf.") ? addFilterField.slice(3) : addFilterField}
+                            </span>
+                          </div>
+                          <select
+                            value={addFilterOperator}
+                            onChange={(e) => setAddFilterOperator(e.target.value)}
+                            className="h-7 w-full rounded border border-input bg-card px-2 text-xs outline-none"
+                          >
+                            <option value="is">is</option>
+                            <option value="is_not">is not</option>
+                          </select>
+                          {addFilterField === "queue" ? (
+                            <select
+                              value={addFilterValue}
+                              onChange={(e) => setAddFilterValue(e.target.value)}
+                              className="h-7 w-full rounded border border-input bg-card px-2 text-xs outline-none"
+                            >
+                              <option value="">Select queue...</option>
+                              {queues.map((q) => (
+                                <option key={q.id} value={q.id}>{q.name}</option>
+                              ))}
+                            </select>
+                          ) : addFilterField === "owner" ? (
+                            <select
+                              value={addFilterValue}
+                              onChange={(e) => setAddFilterValue(e.target.value)}
+                              className="h-7 w-full rounded border border-input bg-card px-2 text-xs outline-none"
+                            >
+                              <option value="">Select owner...</option>
+                              <option value="unassigned">Unassigned</option>
+                              {users.map((u) => (
+                                <option key={u.id} value={u.id}>{u.username}</option>
+                              ))}
+                            </select>
+                          ) : (
+                            <input
+                              value={addFilterValue}
+                              onChange={(e) => setAddFilterValue(e.target.value)}
+                              placeholder="Value"
+                              className="h-7 w-full rounded border border-input bg-card px-2 text-xs outline-none"
+                              onKeyDown={(e) => {
+                                if (e.key === "Enter" && addFilterValue.trim()) {
+                                  const field = addFilterField;
+                                  const value = addFilterValue;
+                                  let valueLabel = value;
+                                  setFilters((prev) => [...prev, {
+                                    id: crypto.randomUUID(),
+                                    field,
+                                    operator: addFilterOperator,
+                                    value,
+                                    label: buildFilterLabel(field, addFilterOperator, valueLabel),
+                                  }]);
+                                  setAddFilterField(null);
+                                  setAddFilterOpen(false);
+                                }
+                              }}
+                            />
+                          )}
+                          <div className="flex items-center justify-end gap-1 pt-1">
+                            <button
+                              type="button"
+                              onClick={() => {
+                                setAddFilterField(null);
+                                setAddFilterOpen(false);
+                              }}
+                              className="rounded px-2 py-1 text-xs text-muted-foreground hover:text-foreground"
+                            >
+                              Cancel
+                            </button>
+                            <button
+                              type="button"
+                              disabled={!addFilterValue.trim()}
+                              onClick={() => {
+                                if (!addFilterValue.trim()) return;
+                                const field = addFilterField;
+                                const value = addFilterValue;
+                                const operator = addFilterOperator;
+                                let valueLabel = value;
+                                if (field === "queue") {
+                                  valueLabel = queues.find((q) => q.id === value)?.name ?? value;
+                                } else if (field === "owner") {
+                                  valueLabel = value === "unassigned" ? "Unassigned"
+                                    : users.find((u) => u.id === value)?.username ?? value;
+                                }
+                                setFilters((prev) => [...prev, {
+                                  id: crypto.randomUUID(),
+                                  field,
+                                  operator,
+                                  value,
+                                  label: buildFilterLabel(field, operator, valueLabel),
+                                }]);
+                                setAddFilterField(null);
+                                setAddFilterOpen(false);
+                              }}
+                              className="rounded bg-primary px-2 py-1 text-xs font-medium text-primary-foreground hover:bg-primary/90 disabled:opacity-50"
+                            >
+                              Apply
+                            </button>
+                          </div>
+                        </div>
                       )}
                     </div>
                   </>
@@ -765,72 +855,6 @@ function TicketWorkbenchContent() {
               </div>
             </div>
 
-            {/* Inline value inputs for custom field filters */}
-            {filters
-              .filter((f) => f.field.startsWith("cf.") && f.value === "")
-              .map((f) => {
-                const cf = customFields.find((x) => x.key === f.field.slice(3));
-                const options = Array.isArray(cf?.values)
-                  ? cf.values.map((v) => String(v))
-                  : [];
-                return (
-                  <div key={`cf-input-${f.id}`} className="flex items-center gap-1.5">
-                    <span className="text-xs font-medium text-muted-foreground">{cf?.name ?? f.field.slice(3)}:</span>
-                    {options.length > 0 ? (
-                      <select
-                        id={`cf-value-${f.id}`}
-                        value=""
-                        onChange={(event) => {
-                          const val = event.target.value;
-                          if (!val) return;
-                          setFilters((prev) =>
-                            prev.map((x) =>
-                              x.id === f.id
-                                ? { ...x, value: val, label: buildFilterLabel(x.field, "is", val) }
-                                : x
-                            )
-                          );
-                        }}
-                        className="h-7 rounded border border-input bg-card px-2 text-xs outline-none"
-                      >
-                        <option value="">Select value...</option>
-                        {options.map((opt) => (
-                          <option key={opt} value={opt}>{opt}</option>
-                        ))}
-                      </select>
-                    ) : (
-                      <div className="flex items-center gap-1">
-                        <input
-                          id={`cf-value-${f.id}`}
-                          placeholder="value"
-                          className="h-7 w-32 rounded border border-input bg-card px-2 text-xs outline-none focus:border-ring"
-                          onKeyDown={(event) => {
-                            if (event.key === "Enter") {
-                              const val = event.currentTarget.value.trim();
-                              if (val) {
-                                setFilters((prev) =>
-                                  prev.map((x) =>
-                                    x.id === f.id
-                                      ? { ...x, value: val, label: buildFilterLabel(x.field, "is", val) }
-                                      : x
-                                  )
-                                );
-                              }
-                            }
-                          }}
-                        />
-                        <button
-                          type="button"
-                          onClick={() => setFilters((prev) => prev.filter((x) => x.id !== f.id))}
-                          className="text-xs text-muted-foreground hover:text-foreground"
-                        >
-                          cancel
-                        </button>
-                      </div>
-                    )}
-                  </div>
-                );
-              })}
           </div>
         </div>
       </header>