security: sanitize personal paths and usernames from documentation

Replaced all instances of:
- /home/dell/coding/giglez → /path/to/giglez
- /home/dell → ~
- leetcrypt → your-username
- PreistlyPython → your-username
- dell@ → user@

Affected files:
- 17 documentation files in docs/
- 2 shell scripts (download_rf_test_datasets.sh, start_web.sh)

No functional changes, only path/username sanitization for privacy.

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

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

docs/IMPLEMENTATION_SUMMARY.md

@@ -24,7 +24,7 @@ This document summarizes the comprehensive implementation of improvements to Gig
 | **UberGuidoZ/Flipper** | 11,284 | ★★★★☆ | Well-organized, active community, multi-format |
 | **Full_Flipper_Database** | 13,118 | ★★★☆☆ | Large collection, mixed quality |
 
-**Download Location:** `/home/dell/coding/giglez/data/`
+**Download Location:** `/path/to/giglez/data/`
 
 **Automatic Labeling Strategy:**
 - Extract device info from file path structure
@@ -47,7 +47,7 @@ This document summarizes the comprehensive implementation of improvements to Gig
 
 #### 3. **Download Script**
 
-**Location:** `/home/dell/coding/giglez/scripts/download_rf_test_datasets.sh`
+**Location:** `/path/to/giglez/scripts/download_rf_test_datasets.sh`
 
 **Execution:**
 ```bash
@@ -66,7 +66,7 @@ This document summarizes the comprehensive implementation of improvements to Gig
 
 ### Import Script
 
-**Location:** `/home/dell/coding/giglez/scripts/import_signatures_to_db.py`
+**Location:** `/path/to/giglez/scripts/import_signatures_to_db.py`
 
 **Features:**
 1. **Flipper Zero Signature Import**
@@ -122,7 +122,7 @@ After full import:
 
 ### Enhanced Upload Endpoint
 
-**Location:** `/home/dell/coding/giglez/src/api/routes/captures_enhanced.py`
+**Location:** `/path/to/giglez/src/api/routes/captures_enhanced.py`
 
 **Endpoint:** `POST /api/v1/captures/upload/enhanced`
 
@@ -216,7 +216,7 @@ Return results to user with confidence scores
 
 #### 1. **JavaScript .sub Parser**
 
-**Location:** `/home/dell/coding/giglez/static/js/sub_parser.js`
+**Location:** `/path/to/giglez/static/js/sub_parser.js`
 
 **Features:**
 - Browser-based .sub file parsing (no server round-trip)
@@ -243,7 +243,7 @@ const validation = SubParser.validateSubFile(metadata);
 
 #### 2. **Enhanced Upload UI**
 
-**Location:** `/home/dell/coding/giglez/static/js/upload_enhanced.js`
+**Location:** `/path/to/giglez/static/js/upload_enhanced.js`
 
 **Features:**
 
@@ -338,7 +338,7 @@ Three modes:
 
 ### Comprehensive Research Document
 
-**Location:** `/home/dell/coding/giglez/docs/ML_DESIGN.md` (6,345 lines)
+**Location:** `/path/to/giglez/docs/ML_DESIGN.md` (6,345 lines)
 
 ### Key Findings from Research