flanner 0.2.0

Added

• Web UI redesigned: drafting-paper light / blueprint-night dark mode
  (prefers-color-scheme), monospace chrome around a serif reading column,
  path breadcrumbs on every page, empty-state illustrations, fluid type
  scale for wide displays; fully offline (CDN dependencies removed)
• Footer credit linking to the author's GitHub
• Pagination on the projects list and project detail pages (50 per page)
• MCP: list_plan_files_tool pages results (default 50, cap 200); get_plan_file_tool
  truncates content past max_chars (default 100k) with truncated/total_chars fields
• Plans past 1M characters are served as plain text instead of rendered markdown
• Styled HTML error pages (400/404/500) for browser routes; /api/* keeps JSON;
  unhandled exceptions log the traceback and never leak it to the page
• Flash messages: project deletion confirms with a success banner; saving a plan
  with unchanged content explains why no new version was created

Changed

• Markdown rendering runs off the event loop and is cached by content hash;
  a multi-megabyte plan no longer freezes the server for all clients (8.7s -> 57ms)
• Dashboard stats computed in SQL instead of loading every plan file (fixes N+1)

Fixed

• MCP server startup never initialized the database, so every DB-backed tool
  failed in a fresh server process (added end-to-end stdio regression test)
• 'list --project X --output json' printed a table instead of JSON
• Emoji in CLI output crashed cp1252 Windows consoles
• API returned 200 with an empty list for a nonexistent project's plans (now 404)