feat: Updated incident-contracts to incorporate more fields supporting more forms

[chetanr25]

Expand incident contract and incident record

Why

Reference discussion: Discussion #609

Approach A: extract once into a shared incident schema, fill every form from that stored document. The contract we had was a first pass and did not actually cover what real fire, EMS, and hazmat reports need. This fills that gap so the schema can carry the full pipeline instead of blocking it.

What changed

• Added the sections the contract was missing: dispatch, actions taken, per-unit response, resources summary, explosion, risk reduction, exposures, rescues, evacuation and displacement, emerging hazards, investigation, persons involved, mobile property, and losses.
• Added shared value types (Money, CodeRef, Quantity, PresenceStatus, OperationStatus, Coordinates) so these concepts are represented once instead of repeated per section.
• Field conventions are now explicit in the file: SI units, money as amount plus currency, absent means unknown, PII flagged, aliases on the fields people are most likely to search for.
• IncidentRecord now owns the contract document as the single source of truth, with a derived incident_datetime and an analytics block for the stats reporting needs without reading the whole JSONB.
• FormType is now an open string instead of a closed enum, since templates are user-registered per agency. Added FieldSource to say whether a template field comes from the contract, a static value, a manual entry, or an LLM-extracted "open" field.

Reference

Standards surveyed: NERIS, NFIRS 5.0, ICS-209, NEMSIS, OSHA 301, UK IRS, Australia AIRS, Canada NFID/Ontario SIR, CTIF, UN SSIRS, and Indian state fire proformas. Discussion: #609.

• NERIS framework schemas: https://github.com/ulfsri/neris-framework and data dictionary https://neris.fsri.org/data-dictionary
• NERIS beta announcement: https://fsri.org/program-update/neris-core-data-schemas-released-beta
• NFIRS Complete Reference Guide (2015): https://www.usfa.fema.gov/downloads/pdf/nfirs/nfirs_complete_reference_guide_2015.pdf
• NFIRS paper forms (all modules): https://apxdata.com/wp-content/uploads/2023/04/NFIRS_paper_forms_2016.pdf
• NFIRS documentation index: https://www.usfa.fema.gov/nfirs/documentation/
• UK IRS questions and lists v1.6: https://assets.publishing.service.gov.uk/media/606302eee90e072d96eb3610/incident-recording-system-questions-and-lists-version-1.6-XML-Schemas-v1-0p-from-April-2012.pdf
• UK incident-level dataset guidance: https://www.gov.uk/government/statistics/fire-statistics-incident-level-datasets/project-overview
• ICS-209 form (FEMA v3): https://training.fema.gov/emiweb/is/icsresource/assets/ics%20forms/ics%20form%20209,%20incident%20status%20summary%20(v3).pdf and user guide https://www.nifc.gov/sites/default/files/document-media/2023_ICS-209_User_Guide.pdf
• NEMSIS v3.5 data dictionary: https://nemsis.org/media/nemsis_v3/release-3.5.0/DataDictionary/PDFHTML/EMSDEMSTATE_National/NEMSISDataDictionary.pdf
• AIRS reference manual record: https://researchdata.edu.au/australian-incident-reporting-reference-manual/181154
• NSW NDMP data dictionary scan: https://www.fire.nsw.gov.au/__data/assets/pdf_file/0017/1394/attachment_1.pdf
• Canada NFID: http://nfidcanada.ca/ and StatCan program page https://www23.statcan.gc.ca/imdb/p2SV.pl?Function=getSurvey&SDDS=5248
• Ontario SIR: https://www.oafc.on.ca/standard-incident-report-sir and code list https://www.toronto.ca/ext/open_data/catalog/data_set_files/ofmcodes2009.pdf
• FENZ incident reports: https://www.fireandemergency.nz/incidents-and-news/incident-reports/
• CTIF world fire statistics: https://ctif.org/world-fire-statistics
• UN SSIRS policy: https://policy.un.org/en/security/operational-guidance/safety-and-security-incident-recording-system
• NCRB fire accident datasets: https://dataful.in/datasets/19986/
• Japan FDMA: https://www.fdma.go.jp/en/ and fire service overview https://www.kaigai-shobo.jp/files/fireserviceinjapan_eng/1Fire_Service_eng.pdf

Fix: #615