fix: replace user-facing hardcoded ~/.hermes paths with display_hermes_home()

Prep for profiles: user-facing messages now use display_hermes_home() so
diagnostic output shows the correct path for each profile.

New helper: display_hermes_home() in hermes_constants.py
12 files swept, ~30 user-facing string replacements.
Includes dynamic TTS schema description.

hermes_cli/callbacks.py

@@ -12,6 +12,7 @@ import getpass
 
 from hermes_cli.banner import cprint, _DIM, _RST
 from hermes_cli.config import save_env_value_secure
+from hermes_constants import display_hermes_home
 
 
 def clarify_callback(cli, question, choices):
@@ -131,7 +132,8 @@ def prompt_for_secret(cli, var_name: str, prompt: str, metadata=None) -> dict:
             }
 
         stored = save_env_value_secure(var_name, value)
-        cprint(f"\n{_DIM}  ✓ Stored secret in ~/.hermes/.env as {var_name}{_RST}")
+        _dhh = display_hermes_home()
+        cprint(f"\n{_DIM}  ✓ Stored secret in {_dhh}/.env as {var_name}{_RST}")
         return {
             **stored,
             "skipped": False,
@@ -183,7 +185,8 @@ def prompt_for_secret(cli, var_name: str, prompt: str, metadata=None) -> dict:
                 }
 
             stored = save_env_value_secure(var_name, value)
-            cprint(f"\n{_DIM}  ✓ Stored secret in ~/.hermes/.env as {var_name}{_RST}")
+            _dhh = display_hermes_home()
+            cprint(f"\n{_DIM}  ✓ Stored secret in {_dhh}/.env as {var_name}{_RST}")
             return {
                 **stored,
                 "skipped": False,