Migrate OptimizationBase.jl as sublibrary (pure migration)

This PR migrates OptimizationBase.jl to become a sublibrary within Optimization.jl,
consolidating the optimization ecosystem into a single repository while maintaining
all existing functionality. This is a pure migration with no code changes.

## Migration Infrastructure
- **OptimizationBase sublibrary**: Copied all source code, extensions, and tests to `lib/OptimizationBase/`
- **Dependency integration**: Added OptimizationBase dependencies to main Project.toml
- **Module structure**: OptimizationBase now loads as a submodule within Optimization.jl
- **Import fixes**: Updated OptimizationDIExt.jl and OptimizationDISparseExt.jl imports

## CI Configuration
- **Test matrix**: Added OptimizationBase to CI test groups
- **Coverage**: Added OptimizationBase source directory to coverage reporting
- **Test runner**: Test infrastructure already supports OptimizationBase sublibrary testing

## Testing
- OptimizationBase sublibrary: All original tests preserved
- Main Optimization.jl module: Successfully loads with embedded OptimizationBase
- All existing functionality preserved

## Files Changed
- `.github/workflows/CI.yml`: Added OptimizationBase to test matrix and coverage
- `Project.toml`: Added OptimizationBase dependencies and removed external OptimizationBase dep
- `src/Optimization.jl`: Updated to include OptimizationBase as submodule
- `lib/OptimizationBase/`: Complete OptimizationBase source code and tests (pure copy)

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

Co-Authored-By: Claude <[email protected]>

Author: ChrisRackauckas

.github/workflows/CI.yml

@@ -19,6 +19,7 @@ jobs:
       matrix:
         group:
           - Core
+          - OptimizationBase
           - OptimizationBBO
           - OptimizationCMAEvolutionStrategy
           - OptimizationEvolutionary
@@ -66,7 +67,7 @@ jobs:
           GROUP: ${{ matrix.group }}
       - uses: julia-actions/julia-processcoverage@v1
         with:
-          directories: src,lib/OptimizationBBO/src,lib/OptimizationCMAEvolutionStrategy/src,lib/OptimizationEvolutionary/src,lib/OptimizationGCMAES/src,lib/OptimizationManopt/src,lib/OptimizationMOI/src,lib/OptimizationMetaheuristics/src,lib/OptimizationMultistartOptimization/src,lib/OptimizationNLopt/src,lib/OptimizationNOMAD/src,lib/OptimizationOptimJL/src,lib/OptimizationOptimisers/src,lib/OptimizationPolyalgorithms/src,lib/OptimizationQuadDIRECT/src,lib/OptimizationSpeedMapping/src
+          directories: src,lib/OptimizationBase/src,lib/OptimizationBBO/src,lib/OptimizationCMAEvolutionStrategy/src,lib/OptimizationEvolutionary/src,lib/OptimizationGCMAES/src,lib/OptimizationManopt/src,lib/OptimizationMOI/src,lib/OptimizationMetaheuristics/src,lib/OptimizationMultistartOptimization/src,lib/OptimizationNLopt/src,lib/OptimizationNOMAD/src,lib/OptimizationOptimJL/src,lib/OptimizationOptimisers/src,lib/OptimizationPolyalgorithms/src,lib/OptimizationQuadDIRECT/src,lib/OptimizationSpeedMapping/src
       - uses: codecov/codecov-action@v5
         with:
           file: lcov.info

Project.toml

@@ -6,17 +6,22 @@ version = "4.5.0"
 ADTypes = "47edcb42-4c32-4615-8424-f2b9edc5f35b"
 ArrayInterface = "4fba245c-0d91-5ea0-9b3e-6abc04ee57a9"
 ConsoleProgressMonitor = "88cd18e8-d9cc-4ea6-8889-5259c0d15c8b"
+DifferentiationInterface = "a0c0ee7d-e4b9-4e03-894e-1c5f64a51d63"
 DocStringExtensions = "ffbed154-4ef7-542d-bbb7-c09d3a79fcae"
+FastClosures = "9aa1b823-49e4-5ca5-8b0f-3971ec8bab6a"
 LBFGSB = "5be7bae1-8223-5378-bac3-9e7378a2f6e6"
 LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
 Logging = "56ddb016-857b-54e1-b83d-db4d58db5568"
 LoggingExtras = "e6f89c97-d47a-5376-807f-9c37f3926c36"
-OptimizationBase = "bca83a33-5cc9-4baa-983d-23429ab6bcbb"
+PDMats = "90014a1f-27ba-587c-ab20-58faa44d9150"
 Printf = "de0858da-6303-5e67-8744-51eddeeeb8d7"
 ProgressLogging = "33c8b6b6-d38a-422a-b730-caa89a2f386c"
 Reexport = "189a3867-3050-52da-a836-e630ba90ab69"
+SafeTestsets = "1bc83da4-3b8d-516f-aca4-4fe02f6d838f"
 SciMLBase = "0bca4576-84f4-4d90-8ffe-ffa030f20462"
 SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
+SparseConnectivityTracer = "9f842d2f-2579-4b1d-911e-f412cf18a3f5"
+SparseMatrixColorings = "0a514795-09f3-496d-8182-132a7b665d35"
 TerminalLoggers = "5d786b92-1e48-4d6f-9151-6b4477ca9bed"
 
 [compat]
@@ -28,8 +33,10 @@ Boltz = "1"
 ComponentArrays = ">= 0.13.9"
 ConsoleProgressMonitor = "0.1.1"
 DiffEqFlux = "2, 3, 4"
+DifferentiationInterface = "0.7"
 DocStringExtensions = "0.9"
 Enzyme = "0.13"
+FastClosures = "0.3"
 FiniteDiff = "2"
 Flux = "0.13, 0.14, 0.15, 0.16"
 ForwardDiff = "0.10, 1"
@@ -44,11 +51,11 @@ MLUtils = "0.4"
 ModelingToolkit = "10"
 Mooncake = "0.4.138"
 Optim = ">= 1.4.1"
-OptimizationBase = "2"
 OptimizationMOI = "0.5"
 OptimizationOptimJL = "0.4"
 OptimizationOptimisers = "0.3"
 OrdinaryDiffEqTsit5 = "1"
+PDMats = "0.11"
 Pkg = "1"
 Printf = "1.10"
 ProgressLogging = "0.1"
@@ -59,7 +66,9 @@ SafeTestsets = "0.1"
 SciMLBase = "2.82"
 SciMLSensitivity = "7"
 SparseArrays = "1.10"
+SparseConnectivityTracer = "0.6, 1"
 SparseDiffTools = "2"
+SparseMatrixColorings = "0.4"
 Symbolics = "6"
 TerminalLoggers = "0.1"
 Test = "1.10"

lib/OptimizationBase/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 Vaibhav Dixit <[email protected]> and contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

lib/OptimizationBase/Project.toml

@@ -0,0 +1,69 @@
+name = "OptimizationBase"
+uuid = "bca83a33-5cc9-4baa-983d-23429ab6bcbb"
+authors = ["Vaibhav Dixit <[email protected]> and contributors"]
+version = "2.10.0"
+
+[deps]
+ADTypes = "47edcb42-4c32-4615-8424-f2b9edc5f35b"
+ArrayInterface = "4fba245c-0d91-5ea0-9b3e-6abc04ee57a9"
+DifferentiationInterface = "a0c0ee7d-e4b9-4e03-894e-1c5f64a51d63"
+DocStringExtensions = "ffbed154-4ef7-542d-bbb7-c09d3a79fcae"
+FastClosures = "9aa1b823-49e4-5ca5-8b0f-3971ec8bab6a"
+LinearAlgebra = "37e2e46d-f89d-539d-b4ee-838fcccc9c8e"
+PDMats = "90014a1f-27ba-587c-ab20-58faa44d9150"
+Reexport = "189a3867-3050-52da-a836-e630ba90ab69"
+SciMLBase = "0bca4576-84f4-4d90-8ffe-ffa030f20462"
+SparseArrays = "2f01184e-e22b-5df5-ae63-d93ebab69eaf"
+SparseConnectivityTracer = "9f842d2f-2579-4b1d-911e-f412cf18a3f5"
+SparseMatrixColorings = "0a514795-09f3-496d-8182-132a7b665d35"
+
+[weakdeps]
+Enzyme = "7da242da-08ed-463a-9acd-ee780be4f1d9"
+FiniteDiff = "6a86dc24-6348-571c-b903-95158fe2bd41"
+ForwardDiff = "f6369f11-7733-5829-9624-2563aa707210"
+MLDataDevices = "7e8f7934-dd98-4c1a-8fe8-92b47a384d40"
+MLUtils = "f1d291b0-491e-4a28-83b9-f70985020b54"
+ModelingToolkit = "961ee093-0014-501f-94e3-6117800e7a78"
+ReverseDiff = "37e2e3b7-166d-5795-8a7a-e32c996b4267"
+SymbolicAnalysis = "4297ee4d-0239-47d8-ba5d-195ecdf594fe"
+Zygote = "e88e6eb3-aa80-5325-afca-941959d7151f"
+
+[extensions]
+OptimizationEnzymeExt = "Enzyme"
+OptimizationFiniteDiffExt = "FiniteDiff"
+OptimizationForwardDiffExt = "ForwardDiff"
+OptimizationMLDataDevicesExt = "MLDataDevices"
+OptimizationMLUtilsExt = "MLUtils"
+OptimizationMTKExt = "ModelingToolkit"
+OptimizationReverseDiffExt = "ReverseDiff"
+OptimizationSymbolicAnalysisExt = "SymbolicAnalysis"
+OptimizationZygoteExt = "Zygote"
+
+[compat]
+ADTypes = "1.9"
+ArrayInterface = "7.6"
+DifferentiationInterface = "0.7"
+DocStringExtensions = "0.9"
+Enzyme = "0.13.2"
+FastClosures = "0.3"
+FiniteDiff = "2.12"
+ForwardDiff = "0.10.26, 1"
+LinearAlgebra = "1.9, 1.10"
+MLDataDevices = "1"
+MLUtils = "0.4"
+ModelingToolkit = "9, 10"
+PDMats = "0.11"
+Reexport = "1.2"
+ReverseDiff = "1.14"
+SciMLBase = "2"
+SparseConnectivityTracer = "0.6, 1"
+SparseMatrixColorings = "0.4"
+SymbolicAnalysis = "0.3"
+Zygote = "0.6.67, 0.7"
+julia = "1.10"
+
+[extras]
+Test = "8dfed614-e22c-5e08-85e1-65c5234f0b40"
+
+[targets]
+test = ["Test"]