Add get_vista tool for retrieving DevRev vista information (#30)

Summary Adds a new "get_vista" tool to the DevRev MCP server that allows users to retrieve vista (filtered view) information by ID. Changes Made - **New Tool**: Added "get_vista" tool with proper input schema validation - **Handler Implementation**: Complete tool handler with comprehensive error handling - **API Integration**: Uses existing `make_devrev_request` utility for consistency - **Search Enhancement**: Added "vista" namespace to search tool for better vista discovery https://app.devrev.ai/devrev/works/ISS-193339 --------- Co-authored-by: Anoushka Kumar <anoushkakumar@Anoushkas-MacBook-Air.local>

Author: anoushkakumar321

src/devrev_mcp/server.py

@@ -30,6 +30,20 @@ async def handle_list_tools() -> list[types.Tool]:
  description="Fetch the current DevRev user details. When the user specifies 'me' in the query, this tool should be called to get the user details.",
  inputSchema={"type": "object", "properties": {}},
  ),
+ types.Tool(
+ name="get_vista",
+ description="Retrieve information about a vista in DevRev using its ID",
+ inputSchema={
+ "type": "object",
+ "properties": {
+ "id": {
+ "type": "string",
+ "description": "The DevRev ID of the vista"
+ }
+ },
+ "required": ["id"]
+ },
+ ),
  types.Tool(
  name="search",
  description="Search DevRev using the provided query",
@@ -39,7 +53,7 @@ async def handle_list_tools() -> list[types.Tool]:
  "query": {"type": "string"},
  "namespace": {
  "type": "string", 
- "enum": ["article", "issue", "ticket", "part", "dev_user", "account", "rev_org"],
+ "enum": ["article", "issue", "ticket", "part", "dev_user", "account", "rev_org", "vista"],
  "description": "The namespace to search in. Use this to specify the type of object to search for."
  },
  },
@@ -439,6 +453,39 @@ async def handle_call_tool(
  text=f"Current DevRev user details: {response.json()}"
  )
  ]
+ 
+ elif name == "get_vista":
+ if not arguments:
+ raise ValueError("Missing arguments")
+
+ id = arguments.get("id")
+ if not id:
+ raise ValueError("Missing id ")
+ 
+ response = make_devrev_request(
+ "vistas.get",
+ {
+ "id": id
+ }
+ )
+ 
+ if response.status_code != 200:
+ error_text = response.text
+ return [
+ types.TextContent(
+ type="text",
+ text=f"get_vista failed with status {response.status_code}: {error_text}"
+ )
+ ]
+ 
+ return [
+ types.TextContent(
+ type="text",
+ text=f"Vista details for '{id}':\n{response.json()}"
+ )
+ ]
+ 
+
  elif name == "search":
  if not arguments:
  raise ValueError("Missing arguments")
@@ -547,6 +594,7 @@ async def handle_call_tool(
  text=f"Object created successfully: {response.json()}"
  )
  ]
+ 
  elif name == "update_work":
  if not arguments:
  raise ValueError("Missing arguments")