docs: reposition tagline to "fine-tune and post-train"

Soup spans the full post-training stack — SFT + preference/RL
(DPO/GRPO/PPO/KTO/ORPO/SimPO/IPO/BCO) + distillation + unlearning +
knowledge-edit + steering + RAFT/RA-DIT — not just fine-tuning. "Fine-tune"
alone undersells the RL/alignment surface and the post-training category.

Update the canonical tagline to "Fine-tune and post-train LLMs in one
command. No SSH, no config hell." across the five places it appears:
README hero, PyPI description (pyproject), `soup --help` epilog + callback
docstring (cli.py), package docstring (__init__), and the auto-generated
HF model card (push.py). Searchable "fine-tune" keyword kept as the verb;
"post-train" added as the category claim.

Copy-only; no version bump (description ships with next release).

README.md

@@ -5,7 +5,7 @@
 <h1 align="center">Soup</h1>
 
 <p align="center">
-  <strong>Fine-tune LLMs in one command. No SSH, no config hell.</strong>
+  <strong>Fine-tune and post-train LLMs in one command. No SSH, no config hell.</strong>
 </p>
 
 <p align="center">

pyproject.toml

@@ -5,7 +5,7 @@ build-backend = "hatchling.build"
 [project]
 name = "soup-cli"
 version = "0.71.14"
-description = "Fine-tune LLMs in one command. No SSH, no config hell."
+description = "Fine-tune and post-train LLMs in one command. No SSH, no config hell."
 readme = "README.md"
 license = "Apache-2.0"
 requires-python = ">=3.10"

src/soup_cli/__init__.py

@@ -1,3 +1,3 @@
-"""Soup CLI — Fine-tune LLMs in one command."""
+"""Soup CLI — Fine-tune and post-train LLMs in one command."""
 
 __version__ = "0.71.14"

src/soup_cli/cli.py

@@ -82,7 +82,7 @@ _GLOBAL_VALUE_OPTS = frozenset({"--log-level"})
 app = typer.Typer(
     name="soup",
     help=(
-        "Fine-tune LLMs in one command. No SSH, no config hell.\n\n"
+        "Fine-tune and post-train LLMs in one command. No SSH, no config hell.\n\n"
         f"[dim]GitHub: {GITHUB_URL}[/]"
     ),
     no_args_is_help=True,
@@ -625,7 +625,7 @@ def main(
         ),
     ),
 ):
-    """Soup — fine-tune LLMs in one command."""
+    """Soup — fine-tune and post-train LLMs in one command."""
     global _verbose, _log_level, _audit_disabled
     _verbose = verbose
     _audit_disabled = no_audit_log

src/soup_cli/commands/push.py

@@ -486,7 +486,7 @@ def generate_model_card_v2(
                 "",
                 "Trained using [Soup CLI]"
                 "(https://github.com/MakazhanAlpamys/Soup) "
-                "— fine-tune LLMs in one command.",
+                "— fine-tune and post-train LLMs in one command.",
                 "",
             ]
         )