Add custom nodes, Civitai loras (LFS), and vast.ai setup script

Includes 30 custom nodes committed directly, 7 Civitai-exclusive
loras stored via Git LFS, and a setup script that installs all
dependencies and downloads HuggingFace-hosted models on vast.ai.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

custom_nodes/ComfyUI-Impact-Pack/tests/README.md

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+# Wildcard System Test Suite
+
+Comprehensive test suite for ComfyUI Impact Pack wildcard system.
+
+## Test Suites
+
+### test_encoding.sh (15 tests)
+**Purpose**: UTF-8 multi-language encoding validation
+**Port**: 8198
+**Coverage**:
+- Korean Hangul characters
+- Emoji support
+- Chinese characters
+- Arabic RTL text
+- Mathematical and currency symbols
+- Mixed multi-language content
+- UTF-8 in dynamic prompts, quantifiers, multi-select
+
+### test_error_handling.sh (10 tests)
+**Purpose**: Graceful error handling verification
+**Port**: 8197
+**Coverage**:
+- Non-existent wildcards
+- Circular reference detection (max 100 iterations)
+- Malformed syntax
+- Deep nesting without crashes
+- Multiple circular references
+
+### test_edge_cases.sh (20 tests)
+**Purpose**: Edge case and boundary condition validation
+**Port**: 8196
+**Coverage**:
+- Empty lines and whitespace filtering
+- Very long lines (>1000 characters)
+- Special characters preservation
+- Case-insensitive matching
+- Comment line filtering
+- Pattern matching (__*/name__)
+- Quantifiers (N#__wildcard__)
+- Complex syntax combinations
+
+### test_deep_nesting.sh (17 tests)
+**Purpose**: Transitive wildcard expansion and depth-agnostic pattern matching
+**Port**: 8194
+**Coverage**:
+- 7-level transitive expansion (directory depth + file references)
+- All depth levels (1-7) individually
+- Mixed depth combinations
+- Nesting with quantifiers and multi-select
+- Nesting with weighted selection
+- Depth-agnostic pattern matching (`__*/name__`)
+- Complex multi-wildcard prompts
+
+### test_ondemand_loading.sh (8 tests)
+**Purpose**: Progressive on-demand wildcard loading
+**Port**: 8193
+**Coverage**:
+- Small cache (1MB) - on-demand enabled
+- Moderate cache (10MB) - progressive loading
+- Large cache (100MB) - eager loading
+- Aggressive lazy loading (0.5MB)
+- Balanced mode (50MB default)
+- On-demand with deep nesting
+- On-demand with multiple wildcards
+- Cache boundary testing
+
+### test_config_quotes.sh (5 tests)
+**Purpose**: Configuration path handling validation
+**Port**: 8192
+**Coverage**:
+- Unquoted paths
+- Double-quoted paths
+- Single-quoted paths
+- Paths with spaces
+- Mixed quote scenarios
+
+### test_dynamic_prompts_full.sh (11 tests)
+**Purpose**: Comprehensive dynamic prompt feature validation with statistical analysis
+**Port**: 8188
+**Coverage**:
+- **Multiselect** (4 tests): 2-item, 3-item, single-item, max-item with separator validation
+- **Weighted Selection** (5 tests): 10:1 ratio, equal weights, extreme bias, multi-level weights, default mixing
+- **Basic Selection** (2 tests): Simple random, nested selection
+- Statistical distribution verification (100+ iterations per test)
+- Duplicate detection and item count validation
+- Separator correctness validation
+
+## Quick Start
+
+```bash
+# Run individual test
+bash test_encoding.sh
+
+# Run all tests
+bash test_encoding.sh
+bash test_error_handling.sh
+bash test_edge_cases.sh
+bash test_deep_nesting.sh
+bash test_ondemand_loading.sh
+bash test_config_quotes.sh
+bash test_dynamic_prompts_full.sh
+```
+
+## Test Infrastructure
+
+- **Configuration**: Each test creates `impact-pack.ini` with test wildcard path
+- **Server Lifecycle**: Automatic server start/stop with dedicated ports
+- **Cleanup**: Automatic cleanup on test completion
+- **Logging**: Detailed logs in `/tmp/*_test.log`
+
+## Test Samples
+
+Located in `wildcards/samples/`:
+- `아름다운색.txt` - Korean UTF-8 test with 12 symbolic colors
+- `test_encoding_*.txt` - UTF-8 encoding test files
+- `test_edge_*.txt` - Edge case test files
+- `test_error_*.txt` - Error handling test files
+- `test_nesting_*.txt` - Nesting test files (7 levels)
+- `patterns/` - Subdirectory for pattern matching tests
+
+## Status
+
+✅ **86 tests, 100% pass rate** (15+10+20+17+8+5+11)
+✅ **Production ready**
+✅ **Complete PRD coverage**
+✅ **On-demand loading validated**
+✅ **Config quotes handling validated**
+✅ **Dynamic prompts statistically validated**
+✅ **Weighted selection verified (correct {weight::option} syntax)**
+✅ **Pattern matching validated (depth-agnostic __*/name__)**
+
+## Documentation
+
+- [Wildcard System PRD](../docs/wildcards/WILDCARD_SYSTEM_PRD.md)
+- [System Design](../docs/wildcards/WILDCARD_SYSTEM_DESIGN.md)
+- [Testing Guide](../docs/wildcards/WILDCARD_TESTING_GUIDE.md)