Add short, non‑ruff CLI aliases (e.g., tms, cfgsync, syncup) for occasional use

[Kilo59]

Pick a shorter or distinct CLI alias/entrypoint

ruff-sync is a useful utility, but its name is a bit long to type when you need it only occasionally (e.g., when setting up a new project or updating a shared Ruff configuration).
Providing a concise, memorable alias – even one that does not start with ruff or r – would make the command easier to discover and type without sacrificing clarity.

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Why an alias matters (even for occasional use)

• Reduced friction – Users can invoke the tool with a single short word instead of typing the full ruff-sync.
• Shell completion friendliness – Short commands are easier to select from fuzzy‑finder or auto‑completion menus.
• Namespace safety – By choosing a name that does not start with ruff/r, we avoid accidental matches with the actual ruff linter or other r*‑prefixed tools.

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Candidate aliases & entrypoints (none start with ruff or r)

Alias	Rationale / Meaning	Known conflicts	Implementation notes
tms	Toml Sync – short, descriptive of the purpose (syncing a TOML config).	No common binary named tms.	Add a console script tms = "ruff_sync:main".
cfgsync	Config Sync – generic enough to cover any future config‑syncing features.	No widely‑used command named cfgsync.	Add cfgsync = "ruff_sync:main".
syncup	Implies “synchronise upstream config”.	No conflict with standard tools.	Add syncup = "ruff_sync:main".
upsync	Emphasises pulling upstream configuration.	No conflict.	Add upsync = "ruff_sync:main".
tomlsync	Directly describes the operation (syncing a TOML file).	Might clash with a custom script, but none in the common toolchain.	Add tomlsync = "ruff_sync:main".
cfgup	Short for “config upstream”.	No conflict.	Add cfgup = "ruff_sync:main".

Recommended minimal set

To keep the package lightweight while offering clear options, we propose exposing three aliases:

1. tms – the shortest, still hints at TOML.
2. cfgsync – a generic, future‑proof name.
3. syncup – conveys the “pull upstream” semantics.

All four entrypoints (ruff-sync, tms, cfgsync, syncup) will point to the same main() function, so they stay fully compatible.

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Implementation Plan

1. Update pyproject.toml
   Add the new console‑script entries under [project.scripts]:

   [project.scripts]
   ruff-sync = "ruff_sync:main"
   tms       = "ruff_sync:main"
   cfgsync   = "ruff_sync:main"
   syncup    = "ruff_sync:main"