fix: pass workspace symbol query to experimental LSP tool (#24576)

packages/opencode/src/tool/lsp.txt

@@ -5,7 +5,7 @@ Supported operations:
 - findReferences: Find all references to a symbol
 - hover: Get hover information (documentation, type info) for a symbol
 - documentSymbol: Get all symbols (functions, classes, variables) in a document
-- workspaceSymbol: Search for symbols across the entire workspace
+- workspaceSymbol: List project-wide symbols matching a query string
 - goToImplementation: Find implementations of an interface or abstract method
 - prepareCallHierarchy: Get call hierarchy item at a position (functions/methods)
 - incomingCalls: Find all functions/methods that call the function at a position
@@ -16,4 +16,9 @@ All operations require:
 - line: The line number (1-based, as shown in editors)
 - character: The character offset (1-based, as shown in editors)
 
+workspaceSymbol also accepts:
+- query: A query string to filter symbols by. Empty string requests all symbols.
+
+For workspaceSymbol, filePath is not sent in the LSP workspace/symbol request. It is used by opencode to select and start the matching LSP server.
+
 Note: LSP servers must be configured for the file type. If no server is available, an error will be returned.