fix(anime): render frames correctly in raw terminals

[calmcacil]

Summary

• emit CRLF line endings for anime frames while stdin is in raw terminal mode
• preserve normal LF output when raw mode is unavailable
• apply the same terminal handling to search and detail frames
• add regression coverage at the terminal-output boundary

Root cause

term.MakeRaw disables output newline translation. The renderer wrote bare LF characters, so the cursor moved down without returning to column 1 and produced the staircase layout.

Validation

• make check
• live AniList search through util-linux script pseudo-terminal