feat: local content-mining platform for YouTube creator scraping

Scraper de canales de YouTube hacia notas Markdown para base de conocimiento
(Obsidian-ready), con plataforma web local.

Engine + CLI (Workstream A):
- Modular pipeline: discover/extract/parse/chapters/render/store + ratelimit
- SQLite store con migración idempotente: FTS5 (transcript search), columnas
  de metadata enriquecida, tablas cookies_meta y scrape_jobs
- Módulos: segments, cookies (Netscape vault), export (json/csv/srt/html),
  analysis (word freq/timeline/wordcloud), monitor (watch loop), pipeline
- CLI Click group: search, export, audio, channels, watch, analyze, re-render
- Fix del bug de scoping de cookies en cli.py

Webapp local (Workstream B):
- FastAPI backend: dashboard, channels, videos facetado, transcript, search
  FTS, analysis, scrape jobs con SSE, cookies drag-and-drop, exports,
  folders (abrir en OS), tools (re-render, formato)
- SPA no-build (Alpine.js + Tailwind + Chart.js por CDN): 9 vistas, tema
  dark command-center con acento rojo→rosa, cookie vault drag-drop,
  consola de scrapeo con progreso live vía SSE

Launcher + subagentes (Workstream C):
- start-server.bat / stop-server.bat con auto port-scan + browser open
- .opencode/agent/webapp-builder.md + .opencode/goals/webapp-build.md

Tests: 38 pytest verdes. Sin funcionalidad de IA (enfoque data-mining).

pyproject.toml

@@ -0,0 +1,48 @@
+[build-system]
+requires = ["setuptools>=68.0", "wheel"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "yt-channel-scraper"
+version = "0.1.0"
+description = "Scraper de canales de YouTube hacia notas Markdown para Obsidian"
+requires-python = ">=3.10"
+dependencies = [
+    "yt-dlp>=2024.10.7",
+    "click>=8.1",
+    "rich>=13.7",
+    "jinja2>=3.1",
+    "pyyaml>=6.0",
+    "python-slugify>=8.0",
+    "requests>=2.31",
+]
+
+[project.optional-dependencies]
+dev = [
+    "pytest>=8.0",
+    "pytest-cov>=4.1",
+]
+web = [
+    "fastapi>=0.110",
+    "uvicorn[standard]>=0.27",
+    "sse-starlette>=2.0",
+]
+analysis = [
+    "matplotlib>=3.8",
+    "wordcloud>=1.9",
+]
+
+[project.scripts]
+yt-scraper = "yt_scraper.cli:main"
+
+[tool.setuptools.packages.find]
+where = ["src"]
+
+[tool.setuptools.package-data]
+yt_scraper = ["../templates/*.j2"]
+
+[tool.pytest.ini_options]
+testpaths = ["tests"]
+markers = [
+    "integration: tests que requieren red (deselect with -m 'not integration')",
+]