Implement Direct Matching Layer (Layer 1)

[touchthesun]

Description:
Implement the exact string matching layer with detailed metadata tracking and confidence scoring for the cooking domain.
Requirements:

• Case-insensitive exact string matching with defensive confidence scoring
• Near-miss detection using Levenshtein distance (≤2 character differences) [https://en.wikipedia.org/wiki/Levenshtein_distance]
• Comprehensive metadata tracking (MatchMetadata, MatchResult classes)
• Confidence penalties for case/whitespace differences
• Domain-agnostic base class with cooking domain concrete implementation

Acceptance Criteria:

• DirectMatcher base class implemented
• CookingDirectMatcher with ingredient/equipment/technique matching
• Near-miss detection with configurable thresholds
• Metadata tracking includes transformation details and match quality indicators
• Unit tests covering edge cases (typos, whitespace, case variations)
• Performance benchmarks for large ingredient/equipment lists
• Documentation with cooking domain examples

Technical Notes:

• Follow the BaseExtractor/BaseMatcher pattern from existing codebase
• Implement confidence scoring: 1.0 for perfect matches, 0.95 for case differences, 0.8 for near-misses
• Use existing MatchResult and MatchMetadata structures

[Jbutler-helpful]

I would ref for symbolic based matching using python (written by @devhawk based on work done by @RobertLRead )
https://github.com/helpfulengineering/project-data-platform/blob/main/src/atoms.py

the expected output of a supply tree should look something like this
helpfulengineering/project-data-platform#13 (comment)

this the basic formate that the Visualizer is expecting

[Jbutler-helpful]

@touchthesun are you able to do this or do you need support by @devhawk (who is still on a small hiatus as i understand)

[touchthesun]

As of latest commits, this issue is completed and can be closed

[NimeshaKahingala]

The file path for the /supply-tree/create API request payload is:

• File Path: packages/front-end/pages/product/[id]/supplyTree.vue

• Section: <script setup> → sendToSupplyGraphAI → payload

[Jbutler-helpful]

This is not resolved yet do to it not return valid supply trees in confirmed tests

[touchthesun]

@Jbutler-helpful this should be returning valid results now, can we close?