Fix Sophia optimizer: add Random import to resolve randn! error

The Sophia optimizer calls randn!() on line 155 of src/sophia.jl but
Random was not imported. This caused UndefVarError when using Sophia.

Changes:
- Add Random to dependencies in Project.toml
- Import Random in src/Optimization.jl

Fixes #1004

🤖 Generated with [Claude Code](https://claude.ai/code)

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

Author: ChrisRackauckas

Project.toml

@@ -14,6 +14,7 @@ LoggingExtras = "e6f89c97-d47a-5376-807f-9c37f3926c36"
 OptimizationBase = "bca83a33-5cc9-4baa-983d-23429ab6bcbb"
 Printf = "de0858da-6303-5e67-8744-51eddeeeb8d7"
 ProgressLogging = "33c8b6b6-d38a-422a-b730-caa89a2f386c"
+Random = "9a3f8284-a2c9-5f02-9a11-845980a1fd5c"
 Reexport = "189a3867-3050-52da-a836-e630ba90ab69"
 SciMLBase = "0bca4576-84f4-4d90-8ffe-ffa030f20462"
 SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"

src/Optimization.jl

@@ -12,7 +12,7 @@ if !isdefined(Base, :get_extension)
 end
 
 using Logging, ProgressLogging, ConsoleProgressMonitor, TerminalLoggers, LoggingExtras
-using ArrayInterface, Base.Iterators, SparseArrays, LinearAlgebra
+using ArrayInterface, Base.Iterators, SparseArrays, LinearAlgebra, Random
 
 import OptimizationBase: instantiate_function, OptimizationCache, ReInitCache
 import SciMLBase: OptimizationProblem,