feat: restore ACP server implementation from PR #949 (#1254)

Restore the ACP editor-integration implementation that was present on the
original PR branch but did not actually land in main.

Includes:
- acp_adapter/ server, session manager, event bridge, auth, permissions,
  and tool helpers
- hermes acp subcommand and hermes-acp entry point
- hermes-acp curated toolset
- ACP registry manifest, setup guide, and ACP test suite
- jupyter-live-kernel data science skill from the original branch

Also updates the revived ACP code for current main by:
- resolving runtime providers through the modern shared provider router
- binding ACP sessions to per-session cwd task overrides
- tracking duplicate same-name tool calls with FIFO IDs
- restoring terminal approval callbacks after prompts
- normalizing supporting docs/skill metadata

Validated with tests/acp and the full pytest suite (-n0).

hermes_cli/main.py

@@ -34,11 +34,12 @@ Usage:
     hermes honcho identity                 # Show AI peer identity representation
     hermes honcho identity <file>          # Seed AI peer identity from a file (SOUL.md etc.)
     hermes honcho migrate                  # Step-by-step migration guide: OpenClaw native → Hermes + Honcho
-    hermes version             # Show version
-    hermes update              # Update to latest version
-    hermes uninstall           # Uninstall Hermes Agent
-    hermes sessions browse     # Interactive session picker with search
-    hermes claw migrate        # Migrate from OpenClaw to Hermes
+    hermes version             Show version
+    hermes update              Update to latest version
+    hermes uninstall           Uninstall Hermes Agent
+    hermes acp                 Run as an ACP server for editor integration
+    hermes sessions browse     Interactive session picker with search
+
     hermes claw migrate --dry-run  # Preview migration without changes
 """
 
@@ -3102,6 +3103,27 @@ For more help on a command:
         help="Skip confirmation prompts"
     )
     uninstall_parser.set_defaults(func=cmd_uninstall)
+
+    # =========================================================================
+    # acp command
+    # =========================================================================
+    acp_parser = subparsers.add_parser(
+        "acp",
+        help="Run Hermes Agent as an ACP (Agent Client Protocol) server",
+        description="Start Hermes Agent in ACP mode for editor integration (VS Code, Zed, JetBrains)",
+    )
+
+    def cmd_acp(args):
+        """Launch Hermes Agent as an ACP server."""
+        try:
+            from acp_adapter.entry import main as acp_main
+            acp_main()
+        except ImportError:
+            print("ACP dependencies not installed.")
+            print("Install them with:  pip install -e '.[acp]'")
+            sys.exit(1)
+
+    acp_parser.set_defaults(func=cmd_acp)
     
     # =========================================================================
     # Parse and execute