Рабочий пайплайн: YouTube -> транскрипция -> выжимка -> Postgres

- новый api/: /pipeline/process (yt-dlp, субтитры или Vosk, LLM/экстрактивная
  суммаризация), /videos, /llm; старый код перенесён в api_legacy/
- web/: Flet UI (flet 0.28.3 + flet-web, порт 8550)
- Dockerfile.api: ffmpeg слоем из mwader/static-ffmpeg, pip с кэш-маунтом
- requirements/pyproject: убраны moviepy, imageio-ffmpeg, битый asyncio
- README с инструкцией запуска и загрузкой Vosk-модели

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

web/designer.py

@@ -0,0 +1,91 @@
+"""Centralized colors and reusable Flet widgets.
+
+Palette is inspired by the dark-purple theme of the related project
+(api-copp): #2F184B base surface, #9b72cf accent.
+"""
+from __future__ import annotations
+
+import flet as ft
+
+
+BG = "#14101e"
+SURFACE = "#2f184b"
+SURFACE_2 = "#3a2160"
+SURFACE_3 = "#1c1230"
+BORDER = "#4a2f6f"
+ACCENT = "#9b72cf"
+ACCENT_2 = "#c0a4e8"
+TEXT = "#ece5f5"
+MUTED = "#a89ec0"
+DANGER = "#e35a72"
+OK = "#6dd58c"
+
+
+def card(*controls: ft.Control, padding: int = 22) -> ft.Container:
+    return ft.Container(
+        content=ft.Column(controls=list(controls), spacing=12, tight=True),
+        bgcolor=SURFACE,
+        border=ft.border.all(1, BORDER),
+        border_radius=12,
+        padding=padding,
+    )
+
+
+def primary_button(text: str, on_click) -> ft.ElevatedButton:
+    return ft.ElevatedButton(
+        text=text,
+        on_click=on_click,
+        bgcolor=ACCENT,
+        color="#ffffff",
+        style=ft.ButtonStyle(
+            shape=ft.RoundedRectangleBorder(radius=8),
+            padding=ft.padding.symmetric(horizontal=18, vertical=12),
+        ),
+    )
+
+
+def secondary_button(text: str, on_click) -> ft.OutlinedButton:
+    return ft.OutlinedButton(
+        text=text,
+        on_click=on_click,
+        style=ft.ButtonStyle(
+            color=TEXT,
+            side=ft.BorderSide(1, BORDER),
+            shape=ft.RoundedRectangleBorder(radius=8),
+            padding=ft.padding.symmetric(horizontal=18, vertical=12),
+        ),
+    )
+
+
+def text_field(
+    label: str,
+    value: str = "",
+    hint: str | None = None,
+    password: bool = False,
+    on_change=None,
+    expand: bool | int | None = True,
+) -> ft.TextField:
+    return ft.TextField(
+        label=label,
+        value=value,
+        hint_text=hint or "",
+        password=password,
+        can_reveal_password=password,
+        on_change=on_change,
+        bgcolor=SURFACE_3,
+        color=TEXT,
+        border_color=BORDER,
+        focused_border_color=ACCENT,
+        cursor_color=ACCENT_2,
+        label_style=ft.TextStyle(color=MUTED, size=12),
+        text_size=14,
+        expand=expand,
+    )
+
+
+def section_title(text: str) -> ft.Text:
+    return ft.Text(text, color=TEXT, size=18, weight=ft.FontWeight.W_600)
+
+
+def hint(text: str) -> ft.Text:
+    return ft.Text(text, color=MUTED, size=12)