docs: IGLA v1.0 announce templates and install guide

Announce materials for community distribution:
- v1_announce_templates.md: X/Telegram/Discord/Reddit posts
- igla_install_guide.md: One-line install commands
- v1_announce_report.md: Metrics tracking

Target: 1,000 downloads Week 1

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: gHashTag

docs/igla_install_guide.md

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+# IGLA v1.0 Quick Install Guide
+
+**Version:** 1.0.0
+**Release:** https://github.com/gHashTag/trinity/releases/tag/v1.0.0-igla
+
+---
+
+## One-Line Install
+
+### macOS (M1/M2/M3 Apple Silicon)
+
+```bash
+curl -LO https://github.com/gHashTag/trinity/releases/download/v1.0.0-igla/igla-macos-arm64 && chmod +x igla-macos-arm64 && ./igla-macos-arm64
+```
+
+### macOS (Intel)
+
+```bash
+curl -LO https://github.com/gHashTag/trinity/releases/download/v1.0.0-igla/igla-macos-x64 && chmod +x igla-macos-x64 && ./igla-macos-x64
+```
+
+### Linux x64
+
+```bash
+curl -LO https://github.com/gHashTag/trinity/releases/download/v1.0.0-igla/igla-linux-x64 && chmod +x igla-linux-x64 && ./igla-linux-x64
+```
+
+### Windows (PowerShell)
+
+```powershell
+Invoke-WebRequest -Uri "https://github.com/gHashTag/trinity/releases/download/v1.0.0-igla/igla-windows-x64.exe" -OutFile "igla.exe"; .\igla.exe
+```
+
+---
+
+## Expected Output
+
+```
+╔══════════════════════════════════════════════════════════════╗
+║     IGLA METAL GPU v2.0 — VSA ACCELERATION                   ║
+║     Scalable Benchmark | Dim: 300 | 8-thread SIMD            ║
+║     φ² + 1/φ² = 3 = TRINITY                                  ║
+╚══════════════════════════════════════════════════════════════╝
+
+═══════════════════════════════════════════════════════════════
+     SCALABLE BENCHMARK RESULTS
+═══════════════════════════════════════════════════════════════
+  Vocab Size │ ops/s     │ M elem/s │ Time(ms) │ Status
+  ───────────┼───────────┼──────────┼──────────┼────────────
+       1000 │      2389 │    716.7 │    418.6 │ 1K+
+       5000 │      1713 │   2570.0 │    583.7 │ 1K+
+      10000 │      3147 │   9441.5 │    317.7 │ 1K+
+      25000 │      4571 │  34284.8 │    218.8 │ 1K+
+      50000 │      4854 │  72823.4 │    206.0 │ PRODUCTION
+```
+
+---
+
+## Binary Sizes
+
+| Platform | Binary | Size |
+|----------|--------|------|
+| macOS ARM64 | `igla-macos-arm64` | 264 KB |
+| macOS x64 | `igla-macos-x64` | 271 KB |
+| Linux x64 | `igla-linux-x64` | 2.3 MB |
+| Windows x64 | `igla-windows-x64.exe` | 543 KB |
+
+---
+
+## System Requirements
+
+| Platform | Minimum |
+|----------|---------|
+| macOS | macOS 11+ (Big Sur) |
+| Linux | glibc 2.17+ (CentOS 7+) |
+| Windows | Windows 10+ |
+| RAM | 64 MB (50K vocab) |
+| CPU | Any x64/ARM64 |
+
+---
+
+## Troubleshooting
+
+### macOS: "cannot be opened because the developer cannot be verified"
+
+```bash
+xattr -d com.apple.quarantine igla-macos-arm64
+```
+
+### Linux: Permission denied
+
+```bash
+chmod +x igla-linux-x64
+```
+
+### Windows: SmartScreen warning
+
+Click "More info" → "Run anyway"
+
+---
+
+## Performance Tips
+
+1. **M1/M2/M3 Mac:** Use ARM64 binary (264KB, fastest)
+2. **Intel Mac:** Use x64 binary
+3. **Linux:** Ensure glibc 2.17+ installed
+4. **Windows:** Run from PowerShell for best output
+
+---
+
+## Build from Source
+
+```bash
+git clone https://github.com/gHashTag/trinity.git
+cd trinity
+zig build-exe src/vibeec/igla_metal_gpu.zig -O ReleaseFast
+./igla_metal_gpu
+```
+
+Requires: Zig 0.15.x
+
+---
+
+## Links
+
+- **Release:** https://github.com/gHashTag/trinity/releases/tag/v1.0.0-igla
+- **Repository:** https://github.com/gHashTag/trinity
+- **Documentation:** https://gHashTag.github.io/trinity
+
+---
+
+**φ² + 1/φ² = 3 = TRINITY**