feat(cli): wire all subcommands

pyra (default→chat), pyra setup, pyra chat, pyra memory list/read/write/append
All routes call bootstrap() first; PyraSecurityError exits with clear message.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/pyra/cli.py

@@ -0,0 +1,100 @@
+import sys
+
+import click
+from rich.console import Console
+
+from pyra.config.dirs import bootstrap
+from pyra.security.boundaries import PyraSecurityError
+
+console = Console()
+
+
+def _bootstrap_or_exit() -> None:
+    try:
+        bootstrap()
+    except PyraSecurityError as exc:
+        console.print(f"[bold red]Security error:[/bold red] {exc}")
+        sys.exit(1)
+
+
+@click.group(invoke_without_command=True)
+@click.pass_context
+def main(ctx: click.Context) -> None:
+    """Pyra — personal AI assistant."""
+    _bootstrap_or_exit()
+    if ctx.invoked_subcommand is None:
+        # Default to chat when no subcommand given
+        from pyra.chat.session import start_chat
+        start_chat()
+
+
+@main.command()
+def setup() -> None:
+    """Run the interactive provider setup wizard."""
+    _bootstrap_or_exit()
+    from pyra.setup.wizard import run_setup
+    run_setup()
+
+
+@main.command()
+def chat() -> None:
+    """Start an interactive chat session."""
+    _bootstrap_or_exit()
+    from pyra.chat.session import start_chat
+    start_chat()
+
+
+@main.group()
+def memory() -> None:
+    """Manage Pyra's long-term memory files."""
+    _bootstrap_or_exit()
+
+
+@memory.command("list")
+def memory_list() -> None:
+    """List all memory files."""
+    from pyra.memory.reader import list_memories
+    memories = list_memories()
+    if not memories:
+        console.print("[dim]No memory files found.[/dim]")
+        return
+    console.print(f"{'File':<45} {'Category':<14} {'Modified'}")
+    console.print("─" * 80)
+    for m in memories:
+        mtime = m.modified.strftime("%Y-%m-%d %H:%M")
+        console.print(f"{m.name:<45} {m.category:<14} {mtime}")
+
+
+@memory.command("read")
+@click.argument("name")
+def memory_read(name: str) -> None:
+    """Read a memory file by name."""
+    from pyra.memory.reader import read_memory
+    from pyra.security.boundaries import VaultAccessError
+    try:
+        content = read_memory(name)
+        console.print(content)
+    except VaultAccessError as exc:
+        console.print(f"[bold red]Blocked:[/bold red] {exc}")
+    except (FileNotFoundError, PermissionError) as exc:
+        console.print(f"[red]Error:[/red] {exc}")
+
+
+@memory.command("write")
+@click.argument("name")
+@click.argument("content")
+def memory_write(name: str, content: str) -> None:
+    """Write content to a memory file."""
+    from pyra.memory.writer import write_memory
+    path = write_memory(name, content)
+    console.print(f"[green]Written:[/green] {path}")
+
+
+@memory.command("append")
+@click.argument("name")
+@click.argument("content")
+def memory_append(name: str, content: str) -> None:
+    """Append content to a memory file."""
+    from pyra.memory.writer import append_memory
+    path = append_memory(name, content)
+    console.print(f"[green]Appended to:[/green] {path}")