Release v1.5.0

✨ Features

• feat(fetcher/wikipedia): emit ImageLinkedList with REST thumbnail.source (97484af)
• feat(fetcher/reddit): emit ImageLinkedList for post listings (0fd12dc)
• feat(fetcher/rss): emit ImageLinkedList with thumbnails (6680e40)
• feat(fetcher): basic_read_store accepts ImageLinkedList (af16de8)
• feat(fetcher): add shared thumbnail downloader (7f332fb)
• feat(render): add list_cards renderer over a new ImageLinkedList shape (e50c4e1)
• feat(cache): document shape/locale/timezone limitation for clear by id (1eac161)
• feat: "splashboard cache" management CLI — list, clear, path (#40) (74c2ea4)
• feat(fetcher): add weather_forecast (e1d08a7)

🐛 Bug Fixes

• fix(cache): address review — dedupe sanitize, multi-byte truncate, doc/exit polish (b2dbf13)
• fix(clippy): sort_by_key + inline OUTCOME literal; add 11 coverage tests (3b45780)
• fix(render): preserve theme.bg in chart_line and chart_scatter (911ed4f)
• fix(render): wrap rgba in Some for ratatui-image 11 set_background_color API (b726d96)

📝 Other Changes

• chore: bump version to v1.5.0 (a97d516)
• style: cargo fmt (ab3b7d6)
• test: fill list_cards / ImageLinkedList coverage gaps (8446b7d)
• refactor(render): extract draw_thumbnail and wrap_osc8 helpers (a998762)
• chore(deps)(deps): bump ratatui-image from 10.0.8 to 11.0.1 (c7d6c62)
• chore(deps)(deps): bump sysinfo from 0.38.4 to 0.39.0 (9d82df6)
• chore(deps)(deps): bump tokio from 1.52.1 to 1.52.3 (24ea3e1)
• chore: update flake.nix hashes for v1.4.0 (bef2903)