tidy up documentation for alpha release

docs/alpha/srs/SRS-04-Tape-Library-Management.md

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+# SRS-04: Tape Library Management
+
+## 1. Overview
+Tape Library Management module provides management of physical and virtual tape libraries, drives, slots, and media.
+
+## 2. Functional Requirements
+
+### 2.1 Physical Tape Library
+**FR-TAPE-001**: System shall discover physical tape libraries
+- **Action**: Scan for attached tape libraries
+- **Output**: List of discovered libraries
+
+**FR-TAPE-002**: System shall list physical tape libraries
+- **Output**: Library list with vendor, model, serial number
+
+**FR-TAPE-003**: System shall display physical library details
+- **Output**: Library properties, drives, slots, media
+
+**FR-TAPE-004**: System shall allow users to load media
+- **Input**: Library ID, drive ID, slot ID
+- **Action**: Load tape from slot to drive
+
+**FR-TAPE-005**: System shall allow users to unload media
+- **Input**: Library ID, drive ID, slot ID
+- **Action**: Unload tape from drive to slot
+
+### 2.2 Virtual Tape Library (VTL)
+**FR-TAPE-006**: System shall allow users to create VTL libraries
+- **Input**: Library name, vendor, model, drive count, slot count
+- **Output**: Created VTL with ID
+
+**FR-TAPE-007**: System shall allow users to list VTL libraries
+- **Output**: VTL list with status, drive count, slot count
+
+**FR-TAPE-008**: System shall allow users to view VTL details
+- **Output**: VTL configuration, drives, slots, media
+
+**FR-TAPE-009**: System shall allow users to update VTL libraries
+- **Input**: VTL ID, updated configuration
+
+**FR-TAPE-010**: System shall allow users to delete VTL libraries
+- **Input**: VTL ID
+- **Validation**: VTL must not be in use
+
+**FR-TAPE-011**: System shall allow users to start/stop VTL libraries
+- **Input**: VTL ID, action (start/stop)
+
+### 2.3 Drive Management
+**FR-TAPE-012**: System shall display drive information
+- **Output**: Drive status, media loaded, position
+
+**FR-TAPE-013**: System shall allow users to control drives
+- **Actions**: Load, unload, eject, rewind
+
+### 2.4 Slot Management
+**FR-TAPE-014**: System shall display slot information
+- **Output**: Slot status, media present, media label
+
+**FR-TAPE-015**: System shall allow users to manage slots
+- **Actions**: View media, move media
+
+### 2.5 Media Management
+**FR-TAPE-016**: System shall display media inventory
+- **Output**: Media list with label, type, status, location
+
+**FR-TAPE-017**: System shall allow users to label media
+- **Input**: Media ID, label
+- **Validation**: Valid label format
+
+## 3. User Interface Requirements
+
+### 3.1 Library List View
+- Physical and VTL library cards
+- Status indicators
+- Quick actions (discover, create VTL)
+
+### 3.2 Library Detail View
+- Overview tab (library info, status)
+- Drives tab (drive list, controls)
+- Slots tab (slot grid, media info)
+- Media tab (media inventory)
+
+### 3.3 VTL Creation Wizard
+- Library name and configuration
+- Drive and slot count
+- Vendor and model selection
+
+## 4. API Endpoints
+
+```
+GET    /api/v1/tape/physical/libraries
+POST   /api/v1/tape/physical/libraries/discover
+GET    /api/v1/tape/physical/libraries/:id
+
+GET    /api/v1/tape/vtl/libraries
+GET    /api/v1/tape/vtl/libraries/:id
+POST   /api/v1/tape/vtl/libraries
+PUT    /api/v1/tape/vtl/libraries/:id
+DELETE /api/v1/tape/vtl/libraries/:id
+POST   /api/v1/tape/vtl/libraries/:id/start
+POST   /api/v1/tape/vtl/libraries/:id/stop
+```
+
+## 5. Permissions
+- **tape:read**: Required for viewing libraries
+- **tape:write**: Required for creating, updating, deleting, controlling
+
+## 6. Error Handling
+- Library not found
+- Drive not available
+- Slot already occupied
+- Media not found
+- MHVTL service errors
+- Insufficient permissions
+