fixup! fixup! fixup! fixup! fixup! [feature] building up the schema again from scratch acording the section 11,4,1 in the bitag report

Author: marmoure

src/main/resources/schemas/sample.csv

@@ -1,5 +1,5 @@
-date_published,regulator_name,regulator_version_number,connection_type,fcc_registration_number,unique_plan_identifier,network_technology_type,provider_name,service_plan_name,bandwidth_download_units
-2025-01-15,FCC,1,fixed,0005937974,F0005937974TIER1,50,Xfinity Internet,Extreme 500,Mbps
-2025-11-02,,1,mobile,0003768165,F0005937974ABCD12341234,500,T-Mobile,Turbo 5G Plus,Mbps
-2025-06-06,FCC,99,satellite,0005937974,F0005937974ABCDEFGHIJ12345,500,Google Fiber,Fiber 2G,Gbps
-2025-06-06,FCC,,something,,,0,randomeValue,,kbps
+date_published,regulator_name,regulator_version_number,connection_type,fcc_registration_number,unique_plan_identifier,network_technology_type,provider_name,service_plan_name,bandwidth_download_units,bandwidth_download_marketed_low
+2025-01-15,FCC,1,fixed,0005937974,F0005937974TIER1,50,Xfinity Internet,Extreme 500,Mbps,2
+2025-11-02,,1,mobile,0003768165,F0005937974ABCD12341234,500,T-Mobile,Turbo 5G Plus,Mbps,75
+2025-06-06,FCC,99,satellite,0005937974,F0005937974ABCDEFGHIJ12345,500,Google Fiber,Fiber 2G,Gbps,500
+2025-06-06,FCC,,something,,,0,randomeValue,,kbps,

src/main/resources/schemas/schema.csvs

@@ -1,5 +1,5 @@
 version 1.1
-@totalColumns 10
+@totalColumns 11
 date_published: xDate
 regulator_name: empty or upperCase
 regulator_version_number: empty or range(1, 99)
@@ -9,4 +9,5 @@ unique_plan_identifier: empty or regex("^[FM][0-9]{1,10}[A-Z0-9]{1,15}$")
 network_technology_type: range(0, 999)
 provider_name: length(1,100)
 service_plan_name: length(0,100)
-bandwidth_download_units: length(4)
+bandwidth_download_units: length(4)
+bandwidth_download_marketed_low: empty or range(1,999)

src/main/resources/schemas/schema_specs

@@ -135,3 +135,20 @@ Examples: kbps, Mbps, Gbps, Tbps, Pbps
 ```
 bandwidth_download_units: length(4)
 ```
+
+11. Download Bandwidth, Marketed, Low.
+What the customer is being or has been sold. Depending on the type of service offered, this MAY be an
+absolute number or MAY be a range. If it is an absolute number, then it should generally be one to three
+digits, because after 999 then a new bandwidth unit is used. If there is only one number, then the value for
+the respective “low” and “high” fields MUST be the same. When a range is appropriate, then the “low” and
+“high” numbers will differ. Some providers do not market speed per se and only disclose some TYPICAL
+speed range, in which case thuis field can be left blank.
+This field MUST be in the file and MAY be populated.
+Name: bandwidth_download_marketed_low
+Type/Format: numeric, length(1,3)
+Examples: 2, 75, 500
+
+```
+bandwidth_download_marketed_low: empty or range(1,999)
+```
+