perf: SIMD loop optimizations and stream resolution stabilization

[oguyon]

This PR stabilizes the cacao module ecosystem and aligns it with recent framework performance optimizations.

Key Changes

1. Graceful Stream Resolution: Migrated stream resolution from ERRMODE_ABORT to ERRMODE_WARN across 26 files. This prevents the entire compute unit from aborting when encountering missing or disconnected streams.
2. Safe Return Handlers: Added explicit NULL or RETURN_FAILURE checks in spotpos.c, AOloopControl_DM_comb.c, and DMturbulence.c after resolveIMGID calls, ensuring that stream failures propagate gracefully without segmentation faults.
3. API Alignment: Updated the linopt_imtools_makeCPAmodes function calls in compute_control_modes.c and AOloopControl_computeCalib_loDMmodes.c to match the latest 19-argument signature introduced in milk's framework-dev branch, resolving standing compilation errors.
4. Pointer Optimization: Injected MILK_RESTRICT and MILK_ASSUME_ALIGNED directives into hot loops within ao188_preprocessor.c to enable GCC auto-vectorization.

Testing

• Fully compiled cacao and its plugins with make -j$(nproc) from the milk/_build directory.
• Confirmed resolution of linopt_imtools_makeCPAmodes and RETURN_FAILURE type mismatch compiler errors.

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Prompt Summary

The user requested the stabilization and performance hardening of the cacao plugin ecosystem, analogous to the optimizations recently deployed to milk. Specifically, the request entailed replacing ERRMODE_ABORT with ERRMODE_WARN, implementing graceful failure paths, and injecting SIMD pointer hints (MILK_RESTRICT / MILK_ASSUME_ALIGNED). After encountering build failures due to type mismatches and upstream API changes, manual compilation fixes were applied to restore the cacao build.

AI Authorship

• Model(s) used: Antigravity
• User edits: None