Normalize frontmatter taxonomy across 293 document transcriptions

Categories now match folder names (15 canonical values).
Types normalized to 25 canonical values per VAULT_MAP.md spec.
Context-aware mapping: W-2s→tax-form, lease files→lease, vet records→vet, etc.

documents/medical/covid/jiang_covid_vaccine.md

@@ -1,6 +1,6 @@
 ---
-type: vaccination-record
-category: covid-19
+type: vaccine
+category: medical
 person: Erica Jiang
 date: 2021-04-10
 provider: LAFD USC

documents/medical/covid/jiang_vaccine_3rd_shot.md

@@ -1,6 +1,6 @@
 ---
-type: medical-record
-category: vaccination
+type: lab-results
+category: medical
 person: Jiang Xuewei (Erica)
 date: 2021-11-24
 source: jiang_vaccine_3rd_shot.jpg

documents/medical/covid/jiang_vaccine_covid.md

@@ -1,5 +1,5 @@
 ---
-type: vaccine-card
+type: vaccine
 category: medical
 person: Xuewei Jiang
 date: 2021

documents/medical/covid/lu_covid_vaccine.md

@@ -1,6 +1,6 @@
 ---
-type: vaccination-record
-category: covid-19
+type: vaccine
+category: medical
 person: Yanxin Lu
 date: 2021-04-15
 provider: Forum

documents/medical/covid/lu_vaccine_2nd_shot.md

@@ -1,6 +1,6 @@
 ---
-type: medical-record
-category: vaccination
+type: lab-results
+category: medical
 person: Lu Yanxin
 date: 2021-05-06
 source: lu_vaccine_2nd_shot.jpg

documents/medical/covid/lu_vaccine_covid.md

@@ -1,5 +1,5 @@
 ---
-type: vaccine-card
+type: vaccine
 category: medical
 person: Yanxin Lu
 date: 2021