chore(dogfood): archive dated documentation and remove database files from git

Priority 1 (Critical): Database files removed from git tracking
- Added **/.aphoria/db/ and **/.aphoria/wal/ to .gitignore
- Removed 7 database files from dogfood/dbpool/.aphoria/db/
- Database files are runtime state (like target/), not source code
- Prevents repository bloat and incorrect content type in git

Priority 2 (Housekeeping): Dated documentation archived
- Created archive/ structure with fixes/ and deprecated/ subdirectories
- Moved SYSTEMATIC-FIXES-2026-02-10.md to archive/fixes/
- Moved SYSTEMATIC-FIXES-COMPLETE.md to archive/fixes/
- Moved PROJECT2-QUICKSTART-DEPRECATED.md to archive/deprecated/
- Moved PROJECT2-READY.md to archive/deprecated/
- Moved verify-project2-ready.sh to archive/deprecated/
- Created archive/README.md documenting archival policy

These files are preserved for historical reference but no longer clutter
the main dogfood directory. See archive/README.md for details.

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

.gitignore

@@ -72,3 +72,5 @@ cmd/load-test/load-test
 cmd/demo-seed/demo-seed
 *.sst
 *.mp4
+**/.aphoria/db/
+**/.aphoria/wal/

applications/aphoria/dogfood/archive/README.md

@@ -0,0 +1,77 @@
+# Dogfood Archive
+
+This directory contains historical documentation and scripts that are no longer active but preserved for reference.
+
+---
+
+## Contents
+
+### `fixes/` - Historical Fix Documentation
+
+**SYSTEMATIC-FIXES-2026-02-10.md**
+- Documents invalid comparison mode fixes across dogfood projects
+- Problem: Invalid `ComparisonMode` values (`greater_than`, `less_than`, etc.) used in templates
+- Solution: Updated to valid modes (`equals`, `not_equals`, `present`, `absent`)
+- Date: 2026-02-10
+
+**SYSTEMATIC-FIXES-COMPLETE.md**
+- Completion summary for the above fixes
+- Date: 2026-02-10
+
+---
+
+### `deprecated/` - Superseded Documentation
+
+**PROJECT2-QUICKSTART-DEPRECATED.md**
+- Old quickstart guide for "Project 2" dogfooding
+- Superseded by: Individual project READMEs (httpclient, msgqueue, cachewrap)
+- Reason: Naming scheme changed from "Project 1/2" to descriptive names
+
+**PROJECT2-READY.md**
+- Project 2 launch readiness documentation
+- Content: Verification that documentation was complete
+- Superseded by: Main README.md now contains this information
+- Date: 2026-02-10
+
+**verify-project2-ready.sh**
+- Shell script to verify Project 2 prerequisites
+- Purpose: Check if Project 1 corpus exists before starting Project 2
+- Superseded by: Skills now handle prerequisite verification
+- Date: 2026-02-10
+
+---
+
+## Why These Were Archived
+
+### Not Deleted Because:
+- Historical record of project evolution
+- Documents real bugs and their fixes
+- Shows learning process (mistakes → corrections)
+- Useful for understanding "why did we change this?"
+
+### But Not Active Because:
+- Dated (specific to 2026-02-10)
+- Superseded by corrected documentation
+- Naming schemes changed (Project 1/2 → descriptive names)
+- Clutter for new users in main directory
+
+---
+
+## If You Need These
+
+These documents are still valid for understanding:
+- How comparison mode bugs were discovered and fixed
+- Evolution of dogfooding documentation structure
+- Why we moved from Project N naming to descriptive names
+
+But for **current dogfooding**, use:
+- `../README.md` - Main dogfood guide
+- `../httpclient/` - HTTP client exercise (complete)
+- `../msgqueue/` - Message queue exercise (with evaluation)
+- `../dbpool/` - Database pool exercise
+- `../cachewrap/` - Cache client exercise
+
+---
+
+**Archive created:** 2026-02-11
+**Archive policy:** Preserve historical docs, keep main directory clean

applications/aphoria/dogfood/dbpool/.aphoria/db/store/fjall/version

@@ -1 +0,0 @@
-FJL