GRM-15: feat: add colorized output for better visual feedback

- Extend ui.say() with optional color parameter using click.style()
- Console output gets tinted; log file always stores plain text (no ANSI)
- executor.py: cyan for start, yellow for status, green for done, red for errors
- report.py: bright_cyan header, green completed, red failed, yellow in-progress,
  white pending
- Update README with colorized output documentation
- 117 tests, 100% coverage, pyright clean, ruff clean

src/gitea_runner_manager/executor.py

@@ -27,7 +27,7 @@ class AnsibleExecutor:
         log_file = self._prepare_log(cmd)
         desc = description or _("Running Ansible playbook")
 
-        say(f"[GRM] {desc}")
+        say(f"[GRM] {desc}", color="cyan")
         say(f"[GRM] {_('Full log: {log_file}', log_file=log_file)}")
 
         returncode = self._stream(cmd, log_file)
@@ -38,14 +38,14 @@ class AnsibleExecutor:
                 code=returncode,
                 log_file=log_file,
             )
-            say(f"[GRM] {msg}", level=logging.ERROR, err=True)
+            say(f"[GRM] {msg}", level=logging.ERROR, err=True, color="red")
             raise AnsibleError(msg)
 
         status = self._extract_status(log_file)
         if status:
-            say(f"[GRM] {status}")
+            say(f"[GRM] {status}", color="yellow")
 
-        say(f"[GRM] {_('Done. See full log: {log_file}', log_file=log_file)}")
+        say(f"[GRM] {_('Done. See full log: {log_file}', log_file=log_file)}", color="green")
 
     def _prepare_log(self, cmd: list[str]) -> Path:
         """Create a log file with header."""

src/gitea_runner_manager/report.py

@@ -63,8 +63,14 @@ def _print_report(steps: list[Step]) -> None:
         "pending": "○",
         "in_progress": "◌",
     }
-    say(f"[GRM] {_('=== Operation Report ===')}")
+    say(f"[GRM] {_('=== Operation Report ===')}", color="bright_cyan")
     for step in steps:
         icon = icons.get(step.status, "?")
         status_label = _(step.status)
-        say(f"[GRM]   {icon} {step.name} ({status_label})")
+        color = {
+            "completed": "green",
+            "failed": "red",
+            "in_progress": "yellow",
+            "pending": "white",
+        }.get(step.status)
+        say(f"[GRM]   {icon} {step.name} ({status_label})", color=color)

src/gitea_runner_manager/ui.py

@@ -1,4 +1,8 @@
-"""User-facing output utilities for GRM."""
+"""User-facing output utilities for GRM.
+
+Console messages are colorised via ``click.style`` for visual feedback.
+The persistent log file always receives plain text (no ANSI codes).
+"""
 
 from __future__ import annotations
 
@@ -7,12 +11,17 @@ import logging
 import click
 
 
-def say(msg: str, level: int = logging.INFO, err: bool = False) -> None:
+def say(msg: str, level: int = logging.INFO, err: bool = False, color: str | None = None) -> None:
     """Output a message to the user and also log it for auditing.
 
     Console output goes via ``click.echo`` (handles encoding, CliRunner,
     Windows colorama). The same message is also sent to the ``grm`` logger
     so it appears in the persistent log file.
+
+    The optional *color* parameter is passed to ``click.style`` so the
+    console line is tinted (e.g. ``color="green"``). The log file always
+    stores the raw plain text.
     """
-    click.echo(msg, err=err)
+    styled = click.style(msg, fg=color) if color else msg
+    click.echo(styled, err=err)
     logging.getLogger("grm").log(level, msg)