feat(engine): implement Regex in FlowExpr and migrate FeatureFilter

[asrcpq]

Overview

Continuing #2030, #2087, #2109, migrating FeatureFilter and update FlowExpr implementation.

Changes

• add Regex(pattern) to construct/compile regular expressions providing find and find_all methods
• add .get on list to simplify out of range fallback on list
• migrate FeatureFilter in all workflows to use FlowExpr (except for deprecated workflows listed in refactor(engine): remove unused workflows and plateau-gis-quality-checker crate #2089)

Notes

Currently condition expression accepts both code and string types which is a known problem. Schema generation for the new code fields are not determined. The fix will be implemented in another PR.

[Copilot]

Pull request overview

This PR continues the ongoing FlowExpr migration by refactoring FeatureFilter condition expressions from a plain string (Expr) into a structured { type, value } Code object, and extends the FlowExpr runtime with several usability features needed by migrated workflows.

Changes:

• Update FeatureFilter condition schema from Expr (string) to Code (type + value) and migrate test workflow fixtures accordingly.
• Extend FlowExpr runtime with Regex(...) support and raw-string literals (r"...") for easier regex authoring.
• Add list/array .get(...) and centralize index resolution logic to simplify safe indexing and reduce duplicated bounds logic.

Reviewed changes

Copilot reviewed 96 out of 97 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
engine/schema/actions.json	Introduces Code/CodeType schema and switches Condition.expr to reference Code.
engine/schema/actions_en.json	Language-specific schema mirror for Code/CodeType + Condition.expr update.
engine/schema/actions_ja.json	Language-specific schema mirror for Code/CodeType + Condition.expr update.
engine/schema/actions_zh.json	Language-specific schema mirror for Code/CodeType + Condition.expr update.
engine/schema/actions_fr.json	Language-specific schema mirror for Code/CodeType + Condition.expr update.
engine/schema/actions_es.json	Language-specific schema mirror for Code/CodeType + Condition.expr update.
engine/schema/i18n/actions/en.json	Adds i18n placeholders for the new Code definition fields.
engine/schema/i18n/actions/ja.json	Adds i18n placeholders for the new Code definition fields.
engine/schema/i18n/actions/zh.json	Adds i18n placeholders for the new Code definition fields.
engine/schema/i18n/actions/fr.json	Adds i18n placeholders for the new Code definition fields.
engine/schema/i18n/actions/es.json	Adds i18n placeholders for the new Code definition fields.
engine/runtime/action-processor/src/feature/filter.rs	Refactors FeatureFilter to compile/evaluate Code and route by eval_bool().
engine/runtime/types/src/expr.rs	Adds CompiledCode::eval_bool() and adjusts string evaluation to use str_cast.
engine/runtime/runtime/src/builder_dag.rs	Adds/maintains dynamic output-port extraction for FeatureFilter from with.conditions[].outputPort.
engine/runtime/expr/src/lib.rs	Adjusts public re-exports (adds bool_cast/str_cast) and removes eval_string helper.
engine/runtime/expr/src/core/lexer.rs	Adds r"..." raw string literal tokenization.
engine/runtime/expr/src/core/eval.rs	Refactors array index assignment bounds logic to use shared index resolution.
engine/runtime/expr/src/core/builtins/array.rs	Adds array/list .get(...) and resolve_index(...) helper.
engine/runtime/expr/src/core/builtins/regex.rs	Adds Regex builtin object with find/find_all-style methods and tests.
engine/runtime/tests/fixture/workflow/feature/filter.yaml	Migrates FeatureFilter test fixture to {type: flowExpr, value: ...}.
engine/runtime/tests/fixture/workflow/geometry/neighbor_finder/proximity_search_with_geojson.yaml	Migrates FeatureFilter test fixture to {type: flowExpr, value: ...}.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 7.86%. Comparing base (070257c) to head (b2e46e8).
⚠️ Report is 7 commits behind head on main.

Additional details and impacted files

@@          Coverage Diff          @@
##            main   #2122   +/-   ##
=====================================
  Coverage   7.86%   7.86%           
=====================================
  Files        224     224           
  Lines      37600   37600           
=====================================
  Hits        2956    2956           
  Misses     34391   34391           
  Partials     253     253           

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[Copilot]

Pull request overview

Copilot reviewed 96 out of 97 changed files in this pull request and generated 1 comment.

[n4to4]

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