UIPQB-277 Define supported operators for marcDataType

[vashjs]

mod-fqm-manager reports dataType: "marcType" for every synthetic MARC column, regardless of whether it's a tag-only reference, a subfield, or an indicator target — so the frontend can't tell these apart from the reported dataType alone. This PR derives the correct operator set from the MARC field's name instead.

• Added parseMarcSelector(fieldName) in marcFieldOperators.js, which parses a MARC field name (e.g. marc_245_ind1, marc_245_a, marc_245_ind1_1_ind2) into a { subfield, indicator1, indicator2 } shape, mirroring the grammar used by lib-fqm-query-processor's MarcFieldFactory. Handles:
  • all six supported forms (tag-only, subfield, indicator target, constrained subfield/indicator target with one or both indicators fixed, blank indicator values)
  • control field tags (001–009, no subfields/indicators)
  • composite entity-type source prefixes (marc_bib.marc_245_a)
  • case-insensitivity
• isMarcIndicatorTarget classifies a parsed selector as targeting an indicator (a single coded character) vs. a subfield/tag.
  • Indicator targets get eq / ne / in / nin (no empty, since an indicator always holds a value)
  • Everything else gets the standard text operator set
• getOperatorOptions (selectOptions.js) now accepts a raw fieldName and internally calls parseMarcSelector for MarcType fields, replacing the two call sites in query.js and RepeatableFields.js that previously duplicated the same dataType === DATA_TYPES.MarcType ? parseMarcSelector(...) : undefined gating check.
• Extracted getDiscreteOrTextOperators in constants/operators.js — the shared eq/ne + (in/nin or contains/starts_with) + empty shape reused by both StringType (via hasSourceOrValues) and MarcType (via isMarcIndicatorTarget).
• Added MarcType to DATA_TYPES.

Refs: UIPQB-277

[github-actions]

Jest Unit Test Results

  1 files  ± 0   22 suites  +1   1m 17s ⏱️ -1s
346 tests +30  345 ✅ +30  1 💤 ±0  0 ❌ ±0 
359 runs  +30  358 ✅ +30  1 💤 ±0  0 ❌ ±0 

Results for commit aae7f95. ± Comparison against base commit d1de340.

♻️ This comment has been updated with latest results.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
99.0% Coverage on New Code
0.0% Duplication on New Code

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