Fix MCP dep tool parameter names to match CLI (issue_id/depends_on_id)

- Changed from confusing from_id/to_id to clear issue_id/depends_on_id
- Matches CLI convention: bd dep add [issue-id] [depends-on-id]
- Updated all tests and implementations
- Fixes GH #113 where Claude Code was creating dependencies backwards

Closes bd-58

Amp-Thread-ID: https://ampcode.com/threads/T-f01aca11-a10f-4908-9ce6-7e1734f2068f
Co-authored-by: Amp <amp@ampcode.com>

integrations/beads-mcp/src/beads_mcp/bd_daemon_client.py

@@ -415,8 +415,8 @@ class BdDaemonClient(BdClientBase):
             params: Dependency parameters
         """
         args = {
-            "from_id": params.from_id,
-            "to_id": params.to_id,
+            "from_id": params.issue_id,
+            "to_id": params.depends_on_id,
             "dep_type": params.dep_type or "blocks",
         }
         await self._send_request("dep_add", args)