feat: Streaming Optimizer

[SarveshOO7]

After many rewrites + discussions + considerations.

Notes:

• The engine needs a rewrite to be able to support CPS and execution forks.
• Storage should have versioning to allow for persistence and resource management.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 57.25191% with 1456 lines in your changes missing coverage. Please review.

Project coverage is 68.3%. Comparing base (285fe5f) to head (b00e41a).

Files with missing lines	Patch %	Lines
optd-core/src/optimizer/handlers.rs	0.0%	319 Missing ⚠️
optd-core/src/optimizer/subscriptions.rs	0.0%	186 Missing ⚠️
optd-core/src/optimizer/ingest.rs	0.0%	183 Missing ⚠️
optd-core/src/bridge/into_cir.rs	0.0%	105 Missing ⚠️
optd-core/src/bridge/from_cir.rs	0.0%	96 Missing ⚠️
optd-core/src/optimizer/mod.rs	0.0%	84 Missing ⚠️
optd-core/src/engine/eval/expr.rs	84.4%	83 Missing ⚠️
optd-core/src/engine/mod.rs	11.6%	68 Missing ⚠️
optd-core/src/optimizer/egest.rs	0.0%	55 Missing ⚠️
optd-core/src/engine/eval/match.rs	94.3%	50 Missing ⚠️
... and 10 more

Additional details and impacted files

Files with missing lines	Coverage Δ
optd-core/src/engine/eval/binary.rs	80.7% <ø> (ø)
optd-core/src/engine/eval/unary.rs	80.8% <ø> (ø)
optd-core/src/optimizer/merge_repr.rs	98.6% <98.6%> (ø)
optd-core/src/cir/rules.rs	0.0% <0.0%> (ø)
optd-core/src/engine/utils/streams.rs	90.7% <90.7%> (ø)
optd-core/src/engine/utils/tests.rs	87.7% <87.7%> (ø)
optd-dsl/src/analyzer/context.rs	75.0% <75.0%> (ø)
optd-core/src/cir/expressions.rs	0.0% <0.0%> (ø)
optd-core/src/cir/plans.rs	0.0% <0.0%> (ø)
optd-core/src/engine/eval/core.rs	90.0% <90.0%> (ø)
... and 12 more

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[connortsui20]

Since this is getting super large, and since nobody else is working on this, let's just merge this now.