fix: improve profile creation UX — seed SOUL.md + credential warning (#8553)

Fresh profiles (created without --clone) now:
- Auto-seed a default SOUL.md immediately, so users have a file to
  customize right away instead of discovering it only after first use
- Print a clear warning that the profile has no API keys and will
  inherit from the shell environment unless configured separately
- Show the SOUL.md path for personality customization

Previously, fresh profiles started with no SOUL.md (only seeded on
first use via ensure_hermes_home), no mention of credential isolation,
and no guidance about customizing personality. Users reported confusion
about profiles using the wrong model/plan tokens and SOUL.md not
being read — both traced to operational gaps in the creation UX.

Closes #8093 (investigated: code correctly loads SOUL.md from profile
HERMES_HOME; issue was operational, not a code bug).

hermes_cli/main.py

@@ -4243,18 +4243,24 @@ def cmd_profile(args):
                             print(f'  Add to your shell config (~/.bashrc or ~/.zshrc):')
                             print(f'    export PATH="$HOME/.local/bin:$PATH"')
 
+            # Profile dir for display
+            try:
+                profile_dir_display = "~/" + str(profile_dir.relative_to(Path.home()))
+            except ValueError:
+                profile_dir_display = str(profile_dir)
+
             # Next steps
             print(f"\nNext steps:")
             print(f"  {name} setup              Configure API keys and model")
             print(f"  {name} chat               Start chatting")
             print(f"  {name} gateway start      Start the messaging gateway")
             if clone or clone_all:
-                try:
-                    profile_dir_display = "~/" + str(profile_dir.relative_to(Path.home()))
-                except ValueError:
-                    profile_dir_display = str(profile_dir)
                 print(f"\n  Edit {profile_dir_display}/.env for different API keys")
                 print(f"  Edit {profile_dir_display}/SOUL.md for different personality")
+            else:
+                print(f"\n  ⚠ This profile has no API keys yet. Run '{name} setup' first,")
+                print(f"    or it will inherit keys from your shell environment.")
+                print(f"  Edit {profile_dir_display}/SOUL.md to customize personality")
             print()
 
         except (ValueError, FileExistsError, FileNotFoundError) as e: