docs: Add 152 README files for ATA-21 air conditioning documentation structure

PRODUCTS/AMPEL360/AMPEL360_AIR_TRANSPORT/BWB-Q100/domains/EEE/ata/ATA-21/21-00-air-conditioning-general/PUB/AMM/CSDB/APPLICABILITY/README.md

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+---
+classification: INTERNAL-EVIDENCE-REQUIRED
+maintainer: "ASI-T Architecture Team"
+---
+
+# APPLICABILITY
+
+**ATA-21** Air Conditioning - subsystem **21-00-air-conditioning-general** (Air Conditioning General) - Aircraft Maintenance Manual - Applicability cross-reference tables
+
+## Directory Purpose
+
+This directory is part of the AMPEL360 BWB-Q100 aircraft documentation structure, following ATA iSpec 2200 standards and S1000D specifications.
+
+## Contents
+
+This directory contains technical documentation and data modules related to the aircraft maintenance and parts information system.
+
+## Related Documentation
+
+- Parent: `..`
+- Project Root: `/PRODUCTS/AMPEL360/AMPEL360_AIR_TRANSPORT/BWB-Q100`
+
+## Standards Compliance
+
+- **ATA iSpec 2200**: Air Transport Association specifications
+- **S1000D**: International specification for technical publications
+- **CSDB**: Common Source Database structure
+
+---
+*This directory is part of the ASI-T2 project documentation hierarchy.*

PRODUCTS/AMPEL360/AMPEL360_AIR_TRANSPORT/BWB-Q100/domains/EEE/ata/ATA-21/21-00-air-conditioning-general/PUB/AMM/CSDB/BREX/README.md

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+---
+classification: INTERNAL-EVIDENCE-REQUIRED
+maintainer: "ASI-T Architecture Team"
+---
+
+# BREX
+
+**ATA-21** Air Conditioning - subsystem **21-00-air-conditioning-general** (Air Conditioning General) - Aircraft Maintenance Manual - Business Rules Exchange (validation rules)
+
+## Directory Purpose
+
+This directory is part of the AMPEL360 BWB-Q100 aircraft documentation structure, following ATA iSpec 2200 standards and S1000D specifications.
+
+## Contents
+
+This directory contains technical documentation and data modules related to the aircraft maintenance and parts information system.
+
+## Related Documentation
+
+- Parent: `..`
+- Project Root: `/PRODUCTS/AMPEL360/AMPEL360_AIR_TRANSPORT/BWB-Q100`
+
+## Standards Compliance
+
+- **ATA iSpec 2200**: Air Transport Association specifications
+- **S1000D**: International specification for technical publications
+- **CSDB**: Common Source Database structure
+
+---
+*This directory is part of the ASI-T2 project documentation hierarchy.*

PRODUCTS/AMPEL360/AMPEL360_AIR_TRANSPORT/BWB-Q100/domains/EEE/ata/ATA-21/21-00-air-conditioning-general/PUB/AMM/CSDB/COMMON/README.md

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+---
+classification: INTERNAL-EVIDENCE-REQUIRED
+maintainer: "ASI-T Architecture Team"
+---
+
+# COMMON
+
+**ATA-21** Air Conditioning - subsystem **21-00-air-conditioning-general** (Air Conditioning General) - Aircraft Maintenance Manual - Common information repository
+
+## Directory Purpose
+
+This directory is part of the AMPEL360 BWB-Q100 aircraft documentation structure, following ATA iSpec 2200 standards and S1000D specifications.
+
+## Contents
+
+This directory contains technical documentation and data modules related to the aircraft maintenance and parts information system.
+
+## Related Documentation
+
+- Parent: `..`
+- Project Root: `/PRODUCTS/AMPEL360/AMPEL360_AIR_TRANSPORT/BWB-Q100`
+
+## Standards Compliance
+
+- **ATA iSpec 2200**: Air Transport Association specifications
+- **S1000D**: International specification for technical publications
+- **CSDB**: Common Source Database structure
+
+---
+*This directory is part of the ASI-T2 project documentation hierarchy.*

PRODUCTS/AMPEL360/AMPEL360_AIR_TRANSPORT/BWB-Q100/domains/EEE/ata/ATA-21/21-00-air-conditioning-general/PUB/AMM/CSDB/DM/README.md

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+---
+classification: INTERNAL-EVIDENCE-REQUIRED
+maintainer: "ASI-T Architecture Team"
+---
+
+# DM
+
+**ATA-21** Air Conditioning - subsystem **21-00-air-conditioning-general** (Air Conditioning General) - Aircraft Maintenance Manual - Data Modules
+
+## Directory Purpose
+
+This directory is part of the AMPEL360 BWB-Q100 aircraft documentation structure, following ATA iSpec 2200 standards and S1000D specifications.
+
+## Contents
+
+This directory contains technical documentation and data modules related to the aircraft maintenance and parts information system.
+
+## Related Documentation
+
+- Parent: `..`
+- Project Root: `/PRODUCTS/AMPEL360/AMPEL360_AIR_TRANSPORT/BWB-Q100`
+
+## Standards Compliance
+
+- **ATA iSpec 2200**: Air Transport Association specifications
+- **S1000D**: International specification for technical publications
+- **CSDB**: Common Source Database structure
+
+---
+*This directory is part of the ASI-T2 project documentation hierarchy.*

PRODUCTS/AMPEL360/AMPEL360_AIR_TRANSPORT/BWB-Q100/domains/EEE/ata/ATA-21/21-00-air-conditioning-general/PUB/AMM/CSDB/DML/README.md

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+---
+classification: INTERNAL-EVIDENCE-REQUIRED
+maintainer: "ASI-T Architecture Team"
+---
+
+# DML
+
+**ATA-21** Air Conditioning - subsystem **21-00-air-conditioning-general** (Air Conditioning General) - Aircraft Maintenance Manual - Data Module List
+
+## Directory Purpose
+
+This directory is part of the AMPEL360 BWB-Q100 aircraft documentation structure, following ATA iSpec 2200 standards and S1000D specifications.
+
+## Contents
+
+This directory contains technical documentation and data modules related to the aircraft maintenance and parts information system.
+
+## Related Documentation
+
+- Parent: `..`
+- Project Root: `/PRODUCTS/AMPEL360/AMPEL360_AIR_TRANSPORT/BWB-Q100`
+
+## Standards Compliance
+
+- **ATA iSpec 2200**: Air Transport Association specifications
+- **S1000D**: International specification for technical publications
+- **CSDB**: Common Source Database structure
+
+---
+*This directory is part of the ASI-T2 project documentation hierarchy.*

PRODUCTS/AMPEL360/AMPEL360_AIR_TRANSPORT/BWB-Q100/domains/EEE/ata/ATA-21/21-00-air-conditioning-general/PUB/AMM/CSDB/ICN/README.md

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+---
+classification: INTERNAL-EVIDENCE-REQUIRED
+maintainer: "ASI-T Architecture Team"
+---
+
+# ICN
+
+**ATA-21** Air Conditioning - subsystem **21-00-air-conditioning-general** (Air Conditioning General) - Aircraft Maintenance Manual - Illustrations and Graphics (ICN - Illustration Control Number)
+
+## Directory Purpose
+
+This directory is part of the AMPEL360 BWB-Q100 aircraft documentation structure, following ATA iSpec 2200 standards and S1000D specifications.
+
+## Contents
+
+This directory contains technical documentation and data modules related to the aircraft maintenance and parts information system.
+
+## Related Documentation
+
+- Parent: `..`
+- Project Root: `/PRODUCTS/AMPEL360/AMPEL360_AIR_TRANSPORT/BWB-Q100`
+
+## Standards Compliance
+
+- **ATA iSpec 2200**: Air Transport Association specifications
+- **S1000D**: International specification for technical publications
+- **CSDB**: Common Source Database structure
+
+---
+*This directory is part of the ASI-T2 project documentation hierarchy.*

PRODUCTS/AMPEL360/AMPEL360_AIR_TRANSPORT/BWB-Q100/domains/EEE/ata/ATA-21/21-00-air-conditioning-general/PUB/AMM/CSDB/PM/README.md

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+---
+classification: INTERNAL-EVIDENCE-REQUIRED
+maintainer: "ASI-T Architecture Team"
+---
+
+# PM
+
+**ATA-21** Air Conditioning - subsystem **21-00-air-conditioning-general** (Air Conditioning General) - Aircraft Maintenance Manual - Publication Modules
+
+## Directory Purpose
+
+This directory is part of the AMPEL360 BWB-Q100 aircraft documentation structure, following ATA iSpec 2200 standards and S1000D specifications.
+
+## Contents
+
+This directory contains technical documentation and data modules related to the aircraft maintenance and parts information system.
+
+## Related Documentation
+
+- Parent: `..`
+- Project Root: `/PRODUCTS/AMPEL360/AMPEL360_AIR_TRANSPORT/BWB-Q100`
+
+## Standards Compliance
+
+- **ATA iSpec 2200**: Air Transport Association specifications
+- **S1000D**: International specification for technical publications
+- **CSDB**: Common Source Database structure
+
+---
+*This directory is part of the ASI-T2 project documentation hierarchy.*

PRODUCTS/AMPEL360/AMPEL360_AIR_TRANSPORT/BWB-Q100/domains/EEE/ata/ATA-21/21-00-air-conditioning-general/PUB/AMM/EXPORT/README.md

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+---
+classification: INTERNAL-EVIDENCE-REQUIRED
+maintainer: "ASI-T Architecture Team"
+---
+
+# EXPORT
+
+**ATA-21** Air Conditioning - subsystem **21-00-air-conditioning-general** (Air Conditioning General) - Aircraft Maintenance Manual - Export packages and deliverables
+
+## Directory Purpose
+
+This directory is part of the AMPEL360 BWB-Q100 aircraft documentation structure, following ATA iSpec 2200 standards and S1000D specifications.
+
+## Contents
+
+This directory contains technical documentation and data modules related to the aircraft maintenance and parts information system.
+
+## Related Documentation
+
+- Parent: `..`
+- Project Root: `/PRODUCTS/AMPEL360/AMPEL360_AIR_TRANSPORT/BWB-Q100`
+
+## Standards Compliance
+
+- **ATA iSpec 2200**: Air Transport Association specifications
+- **S1000D**: International specification for technical publications
+- **CSDB**: Common Source Database structure
+
+---
+*This directory is part of the ASI-T2 project documentation hierarchy.*

PRODUCTS/AMPEL360/AMPEL360_AIR_TRANSPORT/BWB-Q100/domains/EEE/ata/ATA-21/21-00-air-conditioning-general/PUB/AMM/README.md

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+---
+classification: INTERNAL-EVIDENCE-REQUIRED
+maintainer: "ASI-T Architecture Team"
+---
+
+# AMM
+
+**ATA-21** Air Conditioning - subsystem **21-00-air-conditioning-general** (Air Conditioning General) - Aircraft Maintenance Manual
+
+## Directory Purpose
+
+This directory is part of the AMPEL360 BWB-Q100 aircraft documentation structure, following ATA iSpec 2200 standards and S1000D specifications.
+
+## Contents
+
+This directory contains technical documentation and data modules related to the aircraft maintenance and parts information system.
+
+## Related Documentation
+
+- Parent: `..`
+- Project Root: `/PRODUCTS/AMPEL360/AMPEL360_AIR_TRANSPORT/BWB-Q100`
+
+## Standards Compliance
+
+- **ATA iSpec 2200**: Air Transport Association specifications
+- **S1000D**: International specification for technical publications
+- **CSDB**: Common Source Database structure
+
+---
+*This directory is part of the ASI-T2 project documentation hierarchy.*

PRODUCTS/AMPEL360/AMPEL360_AIR_TRANSPORT/BWB-Q100/domains/EEE/ata/ATA-21/21-00-air-conditioning-general/PUB/IPC/CSDB/APPLICABILITY/README.md

@@ -0,0 +1,30 @@
+---
+classification: INTERNAL-EVIDENCE-REQUIRED
+maintainer: "ASI-T Architecture Team"
+---
+
+# APPLICABILITY
+
+**ATA-21** Air Conditioning - subsystem **21-00-air-conditioning-general** (Air Conditioning General) - Illustrated Parts Catalog - Applicability cross-reference tables
+
+## Directory Purpose
+
+This directory is part of the AMPEL360 BWB-Q100 aircraft documentation structure, following ATA iSpec 2200 standards and S1000D specifications.
+
+## Contents
+
+This directory contains technical documentation and data modules related to the aircraft maintenance and parts information system.
+
+## Related Documentation
+
+- Parent: `..`
+- Project Root: `/PRODUCTS/AMPEL360/AMPEL360_AIR_TRANSPORT/BWB-Q100`
+
+## Standards Compliance
+
+- **ATA iSpec 2200**: Air Transport Association specifications
+- **S1000D**: International specification for technical publications
+- **CSDB**: Common Source Database structure
+
+---
+*This directory is part of the ASI-T2 project documentation hierarchy.*

PRODUCTS/AMPEL360/AMPEL360_AIR_TRANSPORT/BWB-Q100/domains/EEE/ata/ATA-21/21-00-air-conditioning-general/PUB/IPC/CSDB/BREX/README.md

@@ -0,0 +1,30 @@
+---
+classification: INTERNAL-EVIDENCE-REQUIRED
+maintainer: "ASI-T Architecture Team"
+---
+
+# BREX
+
+**ATA-21** Air Conditioning - subsystem **21-00-air-conditioning-general** (Air Conditioning General) - Illustrated Parts Catalog - Business Rules Exchange (validation rules)
+
+## Directory Purpose
+
+This directory is part of the AMPEL360 BWB-Q100 aircraft documentation structure, following ATA iSpec 2200 standards and S1000D specifications.
+
+## Contents
+
+This directory contains technical documentation and data modules related to the aircraft maintenance and parts information system.
+
+## Related Documentation
+
+- Parent: `..`
+- Project Root: `/PRODUCTS/AMPEL360/AMPEL360_AIR_TRANSPORT/BWB-Q100`
+
+## Standards Compliance
+
+- **ATA iSpec 2200**: Air Transport Association specifications
+- **S1000D**: International specification for technical publications
+- **CSDB**: Common Source Database structure
+
+---
+*This directory is part of the ASI-T2 project documentation hierarchy.*

PRODUCTS/AMPEL360/AMPEL360_AIR_TRANSPORT/BWB-Q100/domains/EEE/ata/ATA-21/21-00-air-conditioning-general/PUB/IPC/CSDB/COMMON/README.md

@@ -0,0 +1,30 @@
+---
+classification: INTERNAL-EVIDENCE-REQUIRED
+maintainer: "ASI-T Architecture Team"
+---
+
+# COMMON
+
+**ATA-21** Air Conditioning - subsystem **21-00-air-conditioning-general** (Air Conditioning General) - Illustrated Parts Catalog - Common information repository
+
+## Directory Purpose
+
+This directory is part of the AMPEL360 BWB-Q100 aircraft documentation structure, following ATA iSpec 2200 standards and S1000D specifications.
+
+## Contents
+
+This directory contains technical documentation and data modules related to the aircraft maintenance and parts information system.
+
+## Related Documentation
+
+- Parent: `..`
+- Project Root: `/PRODUCTS/AMPEL360/AMPEL360_AIR_TRANSPORT/BWB-Q100`
+
+## Standards Compliance
+
+- **ATA iSpec 2200**: Air Transport Association specifications
+- **S1000D**: International specification for technical publications
+- **CSDB**: Common Source Database structure
+
+---
+*This directory is part of the ASI-T2 project documentation hierarchy.*