ci: Remove clone/volume config (requires admin trust)

Woodpecker doesn't allow custom clone or volumes without elevated trust.
Kaniko layer caching (--cache-repo) still works (registry-based).

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

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

.woodpecker.yml

@@ -1,19 +1,12 @@
-# Shallow clone - only fetch latest commit (faster checkout)
-clone:
-  git:
-    depth: 1
-
 steps:
   # ===========================================
   # PR VALIDATION: Parallel type checks (PRs only)
   # ===========================================
   typecheck-backend:
     image: node:22
-    volumes:
-      - npm-cache:/root/.npm
     commands:
       - cd backend
-      - npm ci --prefer-offline --cache /root/.npm
+      - npm ci --prefer-offline
       - npx tsc --noEmit
     depends_on: []
     when:
@@ -21,11 +14,9 @@ steps:
 
   typecheck-cannaiq:
     image: node:22
-    volumes:
-      - npm-cache:/root/.npm
     commands:
       - cd cannaiq
-      - npm ci --prefer-offline --cache /root/.npm
+      - npm ci --prefer-offline
       - npx tsc --noEmit
     depends_on: []
     when:
@@ -33,11 +24,9 @@ steps:
 
   typecheck-findadispo:
     image: node:22
-    volumes:
-      - npm-cache:/root/.npm
     commands:
       - cd findadispo/frontend
-      - npm ci --prefer-offline --cache /root/.npm
+      - npm ci --prefer-offline
       - npx tsc --noEmit 2>/dev/null || true
     depends_on: []
     when:
@@ -45,11 +34,9 @@ steps:
 
   typecheck-findagram:
     image: node:22
-    volumes:
-      - npm-cache:/root/.npm
     commands:
       - cd findagram/frontend
-      - npm ci --prefer-offline --cache /root/.npm
+      - npm ci --prefer-offline
       - npx tsc --noEmit 2>/dev/null || true
     depends_on: []
     when: