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/tax/2020/jiang_1042s_2020.md

@@ -1,6 +1,6 @@
 ---
-type: tax
-category: 1042s
+type: tax-form
+category: tax
 person: xuewei-jiang
 date: 2020-01-01
 source: "[[jiang_1042s_2020.pdf]]"

documents/tax/2020/jiang_1098t_2020.md

@@ -1,6 +1,6 @@
 ---
-type: tax
-category: 1098t
+type: tax-form
+category: tax
 person: xuewei-jiang
 date: 2020-01-01
 source: "[[jiang_1098t_2020.pdf]]"

documents/tax/2020/jiang_1099_lending_club_2020.md

@@ -1,6 +1,6 @@
 ---
-type: tax
-category: 1099-b
+type: tax-form
+category: tax
 person: xuewei-jiang
 date: 2020-01-01
 source: "[[jiang_1099_lending_club_2020.pdf]]"

documents/tax/2020/jiang_w2_usc_2020.md

@@ -1,6 +1,6 @@
 ---
-type: tax
-category: w2
+type: tax-form
+category: tax
 person: xuewei-jiang
 date: 2020-01-01
 source: "[[jiang_w2_usc_2020.pdf]]"

documents/tax/2020/jiang_w2_utaustin_2020.md

@@ -1,6 +1,6 @@
 ---
-type: tax
-category: w2
+type: tax-form
+category: tax
 person: xuewei-jiang
 date: 2020-01-01
 source: "[[jiang_w2_utaustin_2020.pdf]]"

documents/tax/2020/lu_1099_td_ameritrade_2020.md

@@ -1,6 +1,6 @@
 ---
-type: tax
-category: 1099-composite
+type: tax-form
+category: tax
 person: yanxin-lu
 date: 2020-01-01
 source: "[[lu_1099_td_ameritrade_2020.pdf]]"

documents/tax/2020/lu_w2_meta_2020.md

@@ -1,6 +1,6 @@
 ---
-type: tax
-category: w2
+type: tax-form
+category: tax
 person: yanxin-lu
 date: 2020-01-01
 source: "[[lu_w2_meta_2020.pdf]]"

documents/tax/2020/tax_return_2020.md

@@ -1,6 +1,6 @@
 ---
-type: tax
-category: tax-return
+type: tax-return
+category: tax
 person: joint
 date: 2020-01-01
 source: "[[tax_return_2020.pdf]]"