feat: add 4 template bundles (writing, backend, security, quick-fix)

Ready-to-use project templates with team, workflow, domain, and config:
- writing-short-story: fiction 5-15k words, custom archetypes, sonnet for prose
- backend-feature: standard PDCA, full team, haiku for reviews
- security-review: thorough 3-cycle, all reviewers incl. trickster
- quick-fix: minimal 1-cycle, creator+maker+guardian only

templates/bundles/writing-short-story/config.yaml

@@ -0,0 +1,21 @@
+# Config: writing-short-story defaults
+# Sensible defaults for short fiction. Override with --set at init time
+# or edit .archeflow/config.yaml after init.
+
+budget:
+  max_usd: 10            # Total budget ceiling for a full run
+  warn_at_pct: 80        # Warn when 80% of budget is consumed
+
+models:
+  default: haiku          # Default model for analytical/structural work
+  maker: sonnet           # Prose drafting needs quality
+  story-sage: sonnet      # Voice evaluation needs taste
+  story-explorer: haiku   # Research is analytical
+  creator: haiku          # Outlining is structural
+  guardian: haiku          # Plot checks are analytical
+
+variables:
+  target_words: 8000
+  max_cycles: 2
+  voice_profile: ""
+  dialect_density: 0.15