feat: unhide action, date-range filter, more sort options

- Hidden view shows an Unhide action (eye icon) instead of Hide
- Upload-date filter: From/To date range (inclusive); feed shows only videos
  published in that window (backend published_after / published_before)
- New sort options: Name (A-Z) and Channel subscribers, alongside date/views/
  duration/shuffle
- Native controls follow the theme via color-scheme (dark date picker)

backend/app/routes/feed.py

@@ -1,4 +1,4 @@
-from datetime import datetime, timezone
+from datetime import date, datetime, timedelta, timezone
 
 from fastapi import APIRouter, Depends, HTTPException, Query
 from sqlalchemy import and_, false, func, or_, select
@@ -50,6 +50,8 @@ def get_feed(
     min_duration: int | None = None,
     max_duration: int | None = None,
     max_age_days: int | None = None,
+    published_after: date | None = None,
+    published_before: date | None = None,
     show_normal: bool = True,
     include_shorts: bool = False,
     include_live: bool = False,
@@ -119,6 +121,17 @@ def get_feed(
         query = query.where(
             Video.published_at >= datetime.fromtimestamp(cutoff, tz=timezone.utc)
         )
+    if published_after is not None:
+        start = datetime.combine(
+            published_after, datetime.min.time(), tzinfo=timezone.utc
+        )
+        query = query.where(Video.published_at >= start)
+    if published_before is not None:
+        # Inclusive of the end day.
+        end = datetime.combine(
+            published_before, datetime.min.time(), tzinfo=timezone.utc
+        ) + timedelta(days=1)
+        query = query.where(Video.published_at < end)
     if q:
         # Title (and channel name) only — searching descriptions produced noisy matches.
         like = f"%{q}%"
@@ -168,6 +181,8 @@ def get_feed(
         "views": Video.view_count.desc().nulls_last(),
         "duration_desc": Video.duration_seconds.desc().nulls_last(),
         "duration_asc": Video.duration_seconds.asc().nulls_last(),
+        "title": func.lower(Video.title).asc().nulls_last(),
+        "subscribers": Channel.subscriber_count.desc().nulls_last(),
         "shuffle": func.md5(func.concat(Video.id, str(seed))),
     }
     query = query.order_by(sorts.get(sort, sorts["newest"]))

frontend/src/components/Sidebar.tsx

@@ -8,6 +8,8 @@ const SORTS = [
   { id: "views", label: "Most viewed" },
   { id: "duration_desc", label: "Longest" },
   { id: "duration_asc", label: "Shortest" },
+  { id: "title", label: "Name (A–Z)" },
+  { id: "subscribers", label: "Channel subscribers" },
   { id: "shuffle", label: "Surprise me" },
 ];
 
@@ -70,7 +72,9 @@ export default function Sidebar({
     filters.includeLive ||
     filters.show !== "unwatched" ||
     filters.sort !== "newest" ||
-    !!filters.channelId;
+    !!filters.channelId ||
+    !!filters.dateFrom ||
+    !!filters.dateTo;
 
   return (
     <aside className="w-64 shrink-0 border-r border-border bg-surface/40 overflow-y-auto p-4 space-y-5 hidden md:block">
@@ -118,6 +122,41 @@ export default function Sidebar({
         </select>
       </Section>
 
+      <Section title="Upload date">
+        <div className="flex flex-col gap-1.5">
+          <label className="flex items-center justify-between gap-2 text-xs">
+            <span className="text-muted">From</span>
+            <input
+              type="date"
+              value={filters.dateFrom ?? ""}
+              onChange={(e) =>
+                setFilters({ ...filters, dateFrom: e.target.value || undefined })
+              }
+              className="bg-card border border-border rounded-md px-2 py-1 text-xs outline-none focus:border-accent"
+            />
+          </label>
+          <label className="flex items-center justify-between gap-2 text-xs">
+            <span className="text-muted">To</span>
+            <input
+              type="date"
+              value={filters.dateTo ?? ""}
+              onChange={(e) =>
+                setFilters({ ...filters, dateTo: e.target.value || undefined })
+              }
+              className="bg-card border border-border rounded-md px-2 py-1 text-xs outline-none focus:border-accent"
+            />
+          </label>
+          {(filters.dateFrom || filters.dateTo) && (
+            <button
+              onClick={() => setFilters({ ...filters, dateFrom: undefined, dateTo: undefined })}
+              className="text-[11px] text-muted hover:text-accent self-end"
+            >
+              clear dates
+            </button>
+          )}
+        </div>
+      </Section>
+
       <Section title="Content type">
         <Toggle
           label="Normal"

frontend/src/components/VideoCard.tsx

@@ -1,4 +1,4 @@
-import { Bookmark, Check, EyeOff, ListFilter } from "lucide-react";
+import { Bookmark, Check, Eye, EyeOff, ListFilter } from "lucide-react";
 import clsx from "clsx";
 import type { Video } from "../lib/api";
 import { formatDuration, formatViews, relativeTime } from "../lib/format";
@@ -41,10 +41,17 @@ function Actions({
       </button>
       <button
         onClick={act("hidden")}
-        title="Hide"
+        title={video.status === "hidden" ? "Unhide" : "Hide"}
-        className="p-1.5 rounded-md hover:bg-surface text-muted hover:text-fg"
+        className={clsx(
+          "p-1.5 rounded-md hover:bg-surface text-muted hover:text-fg",
+          video.status === "hidden" && "text-accent"
+        )}
       >
+        {video.status === "hidden" ? (
+          <Eye className="w-4 h-4" />
+        ) : (
           <EyeOff className="w-4 h-4" />
+        )}
       </button>
       {onChannelFilter && (
         <button

frontend/src/index.css

@@ -6,6 +6,14 @@
   --font-scale: 1.06;
 }
 
+/* Make native controls (date picker, scrollbars) follow the theme. */
+html[data-theme="dark"] {
+  color-scheme: dark;
+}
+html[data-theme="light"] {
+  color-scheme: light;
+}
+
 html {
   font-size: calc(16px * var(--font-scale));
   background: var(--bg);

frontend/src/lib/api.ts

@@ -54,6 +54,8 @@ export interface FeedFilters {
   maxAgeDays?: number;
   minDuration?: number;
   maxDuration?: number;
+  dateFrom?: string;
+  dateTo?: string;
 }
 
 class HttpError extends Error {
@@ -86,6 +88,8 @@ function feedQuery(f: FeedFilters, offset: number, limit: number): string {
   p.set("show", f.show);
   if (f.channelId) p.set("channel_id", f.channelId);
   if (f.maxAgeDays) p.set("max_age_days", String(f.maxAgeDays));
+  if (f.dateFrom) p.set("published_after", f.dateFrom);
+  if (f.dateTo) p.set("published_before", f.dateTo);
   if (f.minDuration != null) p.set("min_duration", String(f.minDuration));
   if (f.maxDuration != null) p.set("max_duration", String(f.maxDuration));
   p.set("offset", String(offset));