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/wildcards/samples/README.md

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+# Test Wildcard Files Documentation
+
+This directory contains test wildcard files created to validate various features and edge cases of the wildcard system.
+
+## Test Categories
+
+### 1. Error Handling Tests
+
+**test_error_cases.txt**
+- Purpose: Test handling of non-existent wildcard references
+- Contains: References to `__nonexistent_wildcard__` that should be handled gracefully
+- Expected: System should not crash, provide meaningful error or leave unexpanded
+
+**test_circular_a.txt + test_circular_b.txt**
+- Purpose: Test circular reference detection (A→B→A)
+- Contains: Mutual references between two wildcards
+- Expected: System should detect cycle and prevent infinite loop (max 100 iterations)
+
+### 2. Encoding Tests
+
+**test_encoding_utf8.txt**
+- Purpose: Test UTF-8 multi-language support
+- Contains:
+  - Emoji: 🌸🌺🌼🌻🌷
+  - Japanese: さくら, はな, 美しい花, 桜の木
+  - Chinese: 花, 玫瑰, 莲花, 牡丹
+  - Korean: 꽃, 장미, 벚꽃
+  - Arabic (RTL): زهرة, وردة
+  - Mixed: `🌸 beautiful 美しい flower زهرة 꽃`
+- Expected: All characters render correctly, no encoding errors
+
+**test_encoding_emoji.txt**
+- Purpose: Test emoji handling across categories
+- Contains: Nature, animals, food, hearts, and mixed emoji with text
+- Expected: Emojis render correctly in results
+
+**test_encoding_special.txt**
+- Purpose: Test special Unicode characters
+- Contains:
+  - Mathematical symbols: ∀∂∃∅∆∇∈∉
+  - Greek letters: α β γ δ ε ζ
+  - Currency: $ € £ ¥ ₹ ₽ ₩
+  - Box drawing: ┌─┬─┐
+  - Diacritics: Café résumé naïve Zürich
+  - Special punctuation: … — – • · °
+- Expected: All symbols preserved correctly
+
+### 3. Edge Case Tests
+
+**test_edge_empty_lines.txt**
+- Purpose: Test handling of empty lines and whitespace-only lines
+- Contains: Options separated by variable empty lines
+- Expected: Empty lines ignored, only non-empty options selected
+
+**test_edge_whitespace.txt**
+- Purpose: Test leading/trailing whitespace handling
+- Contains: Options with tabs, spaces, mixed whitespace
+- Expected: Whitespace handling according to parser rules
+
+**test_edge_long_lines.txt**
+- Purpose: Test very long line handling
+- Contains:
+  - Short lines
+  - Medium lines (~100 chars)
+  - Very long lines with spaces (>200 chars)
+  - Ultra-long lines without spaces (continuous text)
+- Expected: No truncation or memory issues, proper handling
+
+**test_edge_special_chars.txt**
+- Purpose: Test special characters that might cause parsing issues
+- Contains:
+  - Embedded wildcard syntax: `__wildcard__` as literal text
+  - Dynamic prompt syntax: `{option|option}` as literal text
+  - Regex special chars: `.`, `*`, `+`, `?`, `|`, `\`, `$`, `^`
+  - Quote characters: `"`, `'`, `` ` ``
+  - HTML special chars: `&`, `<`, `>`, `=`
+- Expected: Special chars treated as literal text in final output
+
+**test_edge_case_insensitive.txt**
+- Purpose: Validate case-insensitive wildcard matching
+- Contains: Options in various case patterns
+- Expected: `__test_edge_case_insensitive__` and `__TEST_EDGE_CASE_INSENSITIVE__` return same results
+
+**test_comments.txt**
+- Purpose: Test comment handling with `#` prefix
+- Contains: Lines starting with `#` mixed with valid options
+- Expected: Comment lines ignored, only non-comment lines selected
+
+### 4. Deep Nesting Tests (7 levels)
+
+**test_nesting_level1.txt → test_nesting_level7.txt**
+- Purpose: Test transitive wildcard expansion up to 7 levels
+- Structure:
+  - Level 1 → references Level 2
+  - Level 2 → references Level 3
+  - ...
+  - Level 7 → final options (no further references)
+- Usage: Access `__test_nesting_level1__` to trigger 7-level expansion
+- Expected: All levels expand correctly, result from level 7 appears
+
+### 5. Syntax Feature Tests
+
+**test_quantifier.txt**
+- Purpose: Test quantifier syntax `N#__wildcard__`
+- Contains: List of color options
+- Usage: `3#__test_quantifier__` should expand to 3 repeated wildcards
+- Expected: Correct repetition and expansion
+
+**test_pattern_match.txt**
+- Purpose: Test pattern matching `__*/name__`
+- Contains: Options with identifiable pattern
+- Usage: `__*/test_pattern_match__` should match this file
+- Expected: Depth-agnostic matching works correctly
+
+## Test Usage Examples
+
+### Basic Test
+```bash
+curl -X POST http://127.0.0.1:8188/impact/wildcards \
+  -H "Content-Type: application/json" \
+  -d '{"text": "__test_encoding_emoji__", "seed": 42}'
+```
+
+### Nesting Test
+```bash
+curl -X POST http://127.0.0.1:8188/impact/wildcards \
+  -H "Content-Type: application/json" \
+  -d '{"text": "__test_nesting_level1__", "seed": 42}'
+```
+
+### Error Handling Test
+```bash
+curl -X POST http://127.0.0.1:8188/impact/wildcards \
+  -H "Content-Type: application/json" \
+  -d '{"text": "__test_error_cases__", "seed": 42}'
+```
+
+### Circular Reference Test
+```bash
+curl -X POST http://127.0.0.1:8188/impact/wildcards \
+  -H "Content-Type: application/json" \
+  -d '{"text": "__test_circular_a__", "seed": 42}'
+```
+
+### Quantifier Test
+```bash
+curl -X POST http://127.0.0.1:8188/impact/wildcards \
+  -H "Content-Type: application/json" \
+  -d '{"text": "3#__test_quantifier__", "seed": 42}'
+```
+
+### Pattern Matching Test
+```bash
+curl -X POST http://127.0.0.1:8188/impact/wildcards \
+  -H "Content-Type: application/json" \
+  -d '{"text": "__*/test_pattern_match__", "seed": 42}'
+```
+
+## Test Coverage
+
+These test files address the following critical gaps identified in the test coverage analysis:
+
+1. ✅ **Error Handling** - Missing wildcard files, circular references
+2. ✅ **UTF-8 Encoding** - Multi-language support (emoji, CJK, RTL)
+3. ✅ **Edge Cases** - Empty lines, whitespace, long lines, special chars
+4. ✅ **Deep Nesting** - 7-level transitive expansion
+5. ✅ **Comment Handling** - Lines starting with `#`
+6. ✅ **Case Insensitivity** - Case-insensitive wildcard matching
+7. ✅ **Pattern Matching** - `__*/name__` syntax
+8. ✅ **Quantifiers** - `N#__wildcard__` syntax
+
+## Expected Test Results
+
+All tests should:
+- Not crash the system
+- Return valid results or graceful error messages
+- Preserve character encoding correctly
+- Handle edge cases without data corruption
+- Respect the 100-iteration limit for circular references
+- Demonstrate deterministic behavior with same seed
+
+---
+
+**Created**: 2025-11-18
+**Purpose**: Test coverage validation for wildcard system
+**Total Files**: 21 test wildcard files