feat(cli): Phase 4 - Standardize preset names across all commands

Problem:
- Inconsistent preset names across commands caused confusion:
  - analyze: quick, standard, **comprehensive**
  - scrape: quick, standard, **deep**
  - github: quick, standard, **full**
- Users had to remember different names for the same concept

Solution:
Standardized all preset systems to use consistent naming:
- quick, standard, comprehensive (everywhere)

Changes:
- scrape_presets.py: Renamed "deep" → "comprehensive"
- github_presets.py: Renamed "full" → "comprehensive"
- Updated docstrings to reflect new names
- All preset dictionaries now use identical keys

Result:
✅ Consistent preset names across all commands
✅ Users only need to remember 3 preset names
✅ Help text already shows "comprehensive" everywhere
✅ All 46 tests passing
✅ Better UX and less confusion

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

src/skill_seekers/cli/presets/github_presets.py

@@ -5,7 +5,7 @@ Defines preset configurations for the github command.
 Presets:
     quick:          Fast scraping with minimal data
     standard:       Balanced scraping (DEFAULT)
-    full:           Comprehensive scraping with all data
+    comprehensive:  Comprehensive scraping with all data
 """
 
 from dataclasses import dataclass, field
@@ -57,8 +57,8 @@ GITHUB_PRESETS = {
         estimated_time="5-15 minutes"
     ),
     
-    "full": GitHubPreset(
-        name="Full",
+    "comprehensive": GitHubPreset(
+        name="Comprehensive",
         description="Comprehensive scraping with all available data",
         max_issues=500,
         features={

src/skill_seekers/cli/presets/scrape_presets.py

@@ -5,7 +5,7 @@ Defines preset configurations for the scrape command.
 Presets:
     quick:          Fast scraping with minimal depth
     standard:       Balanced scraping (DEFAULT)
-    deep:           Comprehensive scraping with all features
+    comprehensive:  Comprehensive scraping with all features
 """
 
 from dataclasses import dataclass, field
@@ -63,8 +63,8 @@ SCRAPE_PRESETS = {
         estimated_time="10-30 minutes"
     ),
     
-    "deep": ScrapePreset(
-        name="Deep",
+    "comprehensive": ScrapePreset(
+        name="Comprehensive",
         description="Comprehensive scraping with all features",
         rate_limit=1.0,
         features={