docs(amiga): complete AmigaOS 3.1/3.2 developer reference — 172 files across 17 sections

Comprehensive technical documentation covering:
- Hardware: OCS/ECS/AGA custom chip registers, Copper & Blitter deep dives
- Boot sequence: cold boot through startup-sequence
- Binary format: HUNK executable spec, relocation, debug info
- Linking & ABI: .fd files, LVO tables, register calling conventions
- Exec kernel: tasks, interrupts, memory, signals, semaphores
- AmigaDOS: file I/O, FFS/OFS layout, CLI/Shell scripting
- Graphics: planar bitmaps, Copper programming, HAM/EHB modes
- Intuition: screens, windows, IDCMP, BOOPSI
- Devices: trackdisk, SCSI, serial, timer, audio, keyboard
- Libraries: utility, expansion, IFFParse, locale, ARexx
- Networking: bsdsocket API, SANA-II, TCP/IP stack comparison
- Toolchain: GCC, vasm/vlink, SAS/C, NDK, debugging
- Reverse engineering: IDA/Ghidra setup, compiler fingerprints, case studies
- CPU & MMU: 68040/060 emulation libs, PMMU, cache management
- Driver development: SANA-II, Picasso96/RTG, AHI audio

All files include breadcrumb navigation. No local paths or proprietary content.

11_libraries/README.md

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+[← Home](../README.md)
+
+# Common Libraries — Overview
+
+## Section Index
+
+| File | Description |
+|---|---|
+| [utility.md](utility.md) | utility.library — TagItem, hooks, date |
+| [expansion.md](expansion.md) | expansion.library — Zorro/AutoConfig |
+| [icon.md](icon.md) | icon.library — Workbench icons (.info) |
+| [workbench.md](workbench.md) | workbench.library — Workbench integration |
+| [iffparse.md](iffparse.md) | iffparse.library — IFF file parsing |
+| [locale.md](locale.md) | locale.library — internationalisation |
+| [keymap.md](keymap.md) | keymap.library — keyboard mapping |
+| [rexxsyslib.md](rexxsyslib.md) | rexxsyslib.library — ARexx interface |
+| [mathffp.md](mathffp.md) | mathffp/mathieeesingbas — floating point |
+| [layers.md](layers.md) | layers.library — window clipping layers |
+| [diskfont.md](diskfont.md) | diskfont.library — disk-based fonts |