refactor(swipe): split swipe screen modules

Move swipe screen logic into hooks/services and extract
state-specific UI components to keep files small while
preserving existing behavior.

Reference: US-002

.ralph/activity.log

@@ -1,6 +1,7 @@
 # Activity Log
 
 ## Run Summary
+- 2026-01-25 20:47:05 | run=20260125-204012-65223 | iter=1 | mode=build | story=US-001 | duration=413s | status=success
 
 ## Events
 
@@ -9,3 +10,8 @@
 [2026-01-25 20:42:52] Added oversized file inventory and split plan
 [2026-01-25 20:43:19] Completed verification commands (test/lint/typecheck/build)
 [2026-01-25 20:46:15] Updated progress log for US-001
+[2026-01-25 20:47:05] ITERATION 1 end (duration=413s)
+[2026-01-25 20:47:07] ITERATION 2 start (mode=build story=US-002)
+[2026-01-25 20:47:25] Start US-002 work
+[2026-01-25 20:59:27] Refactored swipe screen into feature modules (hooks/services/components)
+[2026-01-25 21:02:54] Completed verification commands (test/lint/typecheck/build/web)

.ralph/guardrails.md

@@ -0,0 +1,20 @@
+# Guardrails (Signs)
+
+> Lessons learned from failures. Read before acting.
+
+## Core Signs
+
+### Sign: Read Before Writing
+- **Trigger**: Before modifying any file
+- **Instruction**: Read the file first
+- **Added after**: Core principle
+
+### Sign: Test Before Commit
+- **Trigger**: Before committing changes
+- **Instruction**: Run required tests and verify outputs
+- **Added after**: Core principle
+
+---
+
+## Learned Signs
+

.ralph/runs/run-20260125-204012-65223-iter-1.md

@@ -0,0 +1,34 @@
+# Ralph Run Summary
+
+- Run ID: 20260125-204012-65223
+- Iteration: 1
+- Mode: build
+- Story: US-001: Inventory oversized files and refactor plan
+- Started: 2026-01-25 20:40:12
+- Ended: 2026-01-25 20:47:05
+- Duration: 413s
+- Status: success
+- Log: /Users/jjbrunton/Projects/Sauci/.ralph/runs/run-20260125-204012-65223-iter-1.log
+
+## Git
+- Head (before): 45499edc9a0b78094601f577c707da2374b1765d
+- Head (after): 209dc652d2aaf04d31fe6dd187a28cf2da8ffd67
+
+### Commits
+- 209dc65 chore(ralph): update progress log
+- 06dfc5b docs(inventory): add oversized file plan
+
+### Changed Files (commits)
+- .ralph/activity.log
+- .ralph/progress.md
+- docs/oversized-file-inventory.md
+
+### Uncommitted Changes
+- .ralph/activity.log
+- apps/mobile/android/app/build.gradle
+- apps/mobile/app.json
+- apps/mobile/ios/Sauci.xcodeproj/project.pbxproj
+- .agents/
+- .codex/
+- .ralph/guardrails.md
+