Enable rendered public API docs QA

[ChrisRackauckas-Claude]

Ignore until reviewed by @ChrisRackauckas.

Summary

• enable SciMLTesting v2.1+ rendered public API docs QA for the root package and subpackages with api_docs_kwargs = (; rendered = true, ...)
• ignore dependency-owned reexports in docs QA instead of documenting dependency-owned names locally
• render package-owned public APIs in the manual, remove local reexport-doc shims, and fix stale DataDrivenLux source-doc links
• keep Julia 1.10 nested QA local-package resolution in runtests.jl without adding new [sources] or path source entries

Local verification

All Julia commands used /home/crackauc/.juliaup/bin/julia +1.10 and timeout 3600. Most Julia commands used JULIA_DEPOT_PATH=/home/crackauc/sandbox/tmp_20260708_051717_3275/julia_depots/datadrivendiffeq_scimltesting_v21; Runic used /home/crackauc/sandbox/tmp_20260708_051717_3275/.julia_depot_runic.

• git diff --check: passed with no output
• Runic over changed .jl files: passed with no output
• worktree-inclusive Project diff scan for newly added [sources] / path =: passed with no output
• docs build, julia +1.10 --project=docs docs/make.jl: passed. Remaining warnings were Documenter warnonly warnings for existing unrendered StatsAPI method docstrings / module docstring, linkcheck redirects, large @example HTML fallback, and skipped deployment auto-detection.
• root QA, GROUP=QA julia +1.10 --project=. -e 'using Pkg; Pkg.test(; coverage=false)': passed. Quality Assurance | 13 pass, 4 broken, 17 total; JET Static Analysis | 10 pass, 1 broken, 11 total.
• DMD QA, GROUP=DataDrivenDMD_QA julia +1.10 --project=. -e 'using Pkg; Pkg.test(; coverage=false)': passed. QA | 16 pass, 2 broken, 18 total.
• Sparse QA from lib/DataDrivenSparse, GROUP=QA julia +1.10 --project=. -e 'using Pkg; Pkg.test(; coverage=false)': passed. QA | 16 pass, 2 broken, 18 total.
• Lux QA from lib/DataDrivenLux, GROUP=QA julia +1.10 --project=. -e 'using Pkg; Pkg.test(; coverage=false)': passed after the final docstring-link fix. QA | 17 pass, 1 broken, 18 total.
• SR QA from lib/DataDrivenSR, GROUP=QA julia +1.10 --project=. -e 'using Pkg; Pkg.test(; coverage=false)': passed. Quality Assurance | 17 pass, 1 broken, 18 total.

Not run: full all-groups root Pkg.test(). This was kept scoped to docs/docstrings/rendered QA plus the affected QA groups.

[ChrisRackauckas]

Don't reexport symbolicregression

[ChrisRackauckas-Claude]

Follow-up after CI caught DataDrivenSR core tests relying on the old SymbolicRegression reexport.

Fix pushed: 59b54000

What changed:

• lib/DataDrivenSR/test/Core/symbolic_regression.jl now imports SymbolicRegression and calls SymbolicRegression.Options(...) explicitly.
• Removed the now-unused Reexport dependency/compat entry from lib/DataDrivenSR/Project.toml; DataDrivenSR no longer uses @reexport.

Local validation on Julia 1.10:

• git diff --check: passed.
• Runic --check on lib/DataDrivenSR/test/Core/symbolic_regression.jl and lib/DataDrivenSR/Project.toml: passed.
• GROUP=DataDrivenSR Pkg.test(; coverage=false): passed, Symbolic Regression | 6 pass.
• GROUP=DataDrivenSR_QA Pkg.test(; coverage=false): passed, Quality Assurance | 17 pass, 1 broken, 18 total.

Generated lib/DataDrivenSR/test/outputs/ files from the local SymbolicRegression run were removed before commit.