Refactor dashboard and upload flows

Remove dead admin UI code, redesign dashboard followers/following and upload experiences, and add schema audit tooling with repair migrations for forum and upload drift.

resources/views/components/dashboard/filter-select.blade.php

@@ -0,0 +1,68 @@
+@props([
+    'name',
+    'value' => null,
+    'options' => [],
+])
+
+<div
+    x-data="{
+        open: false,
+        value: @js((string) ($value ?? '')),
+        options: @js(collect($options)->map(fn ($option) => [
+            'value' => (string) ($option['value'] ?? ''),
+            'label' => (string) ($option['label'] ?? ''),
+        ])->values()->all()),
+        labelFor(selectedValue) {
+            const match = this.options.find((option) => option.value === selectedValue)
+            return match ? match.label : (this.options[0]?.label ?? '')
+        },
+        select(nextValue) {
+            this.value = nextValue
+            this.open = false
+        },
+    }"
+    class="relative"
+    @click.outside="open = false"
+    @keydown.escape.window="open = false"
+>
+    <input type="hidden" name="{{ $name }}" x-model="value">
+
+    <button
+        type="button"
+        @click="open = !open"
+        class="flex w-full items-center justify-between gap-3 rounded-xl border border-white/[0.08] bg-black/20 px-4 py-3 text-left text-sm text-white transition-colors hover:border-white/[0.14] focus:border-sky-400/40 focus:outline-none"
+        :aria-expanded="open.toString()"
+    >
+        <span class="truncate" x-text="labelFor(value)"></span>
+        <i class="fa-solid fa-chevron-down text-xs text-white/40 transition-transform" :class="open ? 'rotate-180' : ''"></i>
+    </button>
+
+    <div
+        x-cloak
+        x-show="open"
+        x-transition:enter="transition ease-out duration-150"
+        x-transition:enter-start="opacity-0 -translate-y-1"
+        x-transition:enter-end="opacity-100 translate-y-0"
+        x-transition:leave="transition ease-in duration-100"
+        x-transition:leave-start="opacity-100 translate-y-0"
+        x-transition:leave-end="opacity-0 -translate-y-1"
+        class="absolute left-0 right-0 z-50 mt-2 overflow-hidden rounded-2xl border border-white/[0.08] bg-slate-950/95 shadow-[0_24px_70px_rgba(0,0,0,0.45)] backdrop-blur"
+        style="display: none;"
+    >
+        <div class="p-2">
+            <template x-for="option in options" :key="option.value">
+                <button
+                    type="button"
+                    @click="select(option.value)"
+                    class="flex w-full items-center justify-between rounded-xl px-3 py-2.5 text-left text-sm transition-colors"
+                    :class="value === option.value
+                        ? 'bg-sky-400/20 text-white'
+                        : 'text-white/75 hover:bg-white/[0.06] hover:text-white'"
+                >
+                    <span x-text="option.label"></span>
+                    <i x-show="value === option.value" class="fa-solid fa-check text-xs text-sky-200"></i>
+                </button>
+            </template>
+        </div>
+    </div>
+</div>