fix: update AllAnime decryption logic and search parsing

[Hackedghost64]

• Implemented AES-256-GCM decryption for the new 'tobeparsed' field.
• Switched search result parsing to python3 for better reliability.
• Updated README.md with new dependencies (python3, pycryptodome).
• Bumped version to 4.12.0.

Pull Request Template

Type of change

• Bug fix

Description

well i needed to add a layer of decryption to get the links

Checklist

• any anime playing
• bumped version

---

• next, prev and replay work
• -c history and continue work
• -d downloads work
• -s syncplay works
• -q quality works
• -v vlc works
• -e (select episode) aka -r (range selection) works
• -S select index works
• --skip ani-skip works
• --skip-title ani-skip title argument works
• --no-detach no detach works
• --exit-after-play auto exit after playing works
• --nextep-countdown countdown to next ep works
• --dub and regular (sub) mode both work
• all providers return links (not necessarily on a single anime, use debug mode to confirm)

---

• -h help info is up to date
• Readme is up to date
• Man page is up to date

Additional Testcases

• The safe bet: One Piece
• Episode 0: Saenai Heroine no Sodatekata ♭
• Unicode: Saenai Heroine no Sodatekata ♭
• Non-whole episodes: Tensei shitara slime datta ken (ep. 24.5, ep. 24.9)
• All Providers: Youkoso Jitsuryoku Shijou Shugi no Kyoushitsu e (TV) (3 m3u8, 3 mp4, 1 fast4speed, 1 sharepoint)
• The examples of the help text

[justchokingaround]

@Derisis13 i will let you take care of this one :D

[port19x]

@justchokingaround didn't you implement this in #1650 ?
If so, let's close this PR in favor of your more idiomatic implementation

[Hackedghost64]

So is there an issue with the code?

[port19x]

Yes. The main issue is calling python3, making this a weird hybrid of a shell and python script

[justchokingaround]

@justchokingaround didn't you implement this in #1650 ? If so, let's close this PR in favor of your more idiomatic implementation

yeah but i wanted @Derisis13 to dunk on him for using python

[justchokingaround]

and on the vibe coding