Follow DiffEqBase pattern: import solve interface from SciMLBase

Match DiffEqBase style by importing all solve interface functions from
SciMLBase rather than directly from CommonSolve. SciMLBase already
imports from CommonSolve and exports these functions, so all packages
in the ecosystem should import from SciMLBase for consistency.

Changes:
- Remove CommonSolve as a direct dependency
- Import solve, init, solve!, __init, __solve from SciMLBase
- Keep all other SciMLBase imports organized together

This matches exactly how DiffEqBase handles the solve interface.

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

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

Author: ChrisRackauckas

lib/OptimizationBase/Project.toml

@@ -6,7 +6,6 @@ version = "3.0.0"
 [deps]
 ADTypes = "47edcb42-4c32-4615-8424-f2b9edc5f35b"
 ArrayInterface = "4fba245c-0d91-5ea0-9b3e-6abc04ee57a9"
-CommonSolve = "38540f10-b2f7-11e9-35d8-d573e4eb0ff2"
 DifferentiationInterface = "a0c0ee7d-e4b9-4e03-894e-1c5f64a51d63"
 DocStringExtensions = "ffbed154-4ef7-542d-bbb7-c09d3a79fcae"
 FastClosures = "9aa1b823-49e4-5ca5-8b0f-3971ec8bab6a"
@@ -43,7 +42,6 @@ OptimizationZygoteExt = "Zygote"
 [compat]
 ADTypes = "1.9"
 ArrayInterface = "7.6"
-CommonSolve = "0.2"
 DifferentiationInterface = "0.7"
 DocStringExtensions = "0.9"
 Enzyme = "0.13.2"

lib/OptimizationBase/src/OptimizationBase.jl

@@ -5,16 +5,15 @@ using Reexport
 @reexport using SciMLBase, ADTypes
 
 using ArrayInterface, Base.Iterators, SparseArrays, LinearAlgebra
-import CommonSolve: init, solve, solve!
-import SciMLBase: OptimizationProblem,
+import SciMLBase: solve, init, solve!, __init, __solve,
+                  OptimizationProblem,
                   OptimizationFunction, ObjSense,
                   MaxSense, MinSense, OptimizationStats,
                   allowsbounds, requiresbounds,
                   allowsconstraints, requiresconstraints,
                   allowscallback, requiresgradient,
                   requireshessian, requiresconsjac,
-                  requiresconshess, supports_opt_cache_interface,
-                  __init, __solve
+                  requiresconshess, supports_opt_cache_interface
 export ObjSense, MaxSense, MinSense
 export allowsbounds, requiresbounds, allowsconstraints, requiresconstraints,
        allowscallback, requiresgradient, requireshessian,