task: remove dead config.example.json seed template

config.example.json was the tracked seed for the gitignored config.json,
but the base ships zero compose overlays and every reader (Makefile,
install.sh, banner.sh) tolerates a missing config.json via jq fallbacks.
Remove the file and its now-dead seeding block in install.sh.

Closes #323

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

CHANGELOG.md

@@ -15,6 +15,7 @@ Update policy and release automation live in [`.claude/rules/git.md`](.claude/ru
 ### Changed
 ### Fixed
 ### Removed
+- `config.example.json` and its install-time seeding step (`scripts/install.sh`); the base ships zero compose overlays and all readers tolerate a missing `config.json`, so the example template was dead weight. Packs that need overlays create their own `config.json` ([#323](https://github.com/ryaneggz/open-harness/issues/323)).
 ### Deprecated
 ### Security
 

config.example.json

@@ -1,7 +0,0 @@
-{
-  "composeOverrides": [
-    ".devcontainer/docker-compose.claude-host.yml",
-    ".devcontainer/docker-compose.codex-host.yml",
-    ".devcontainer/docker-compose.opencode-host.yml"
-  ]
-}

scripts/install.sh

@@ -299,12 +299,6 @@ else
     fi
   fi
 
-  # ── Seed config.json from example if missing ──────────────────────────
-  if [ ! -f "$REPO_DIR/config.json" ] && [ -f "$REPO_DIR/config.example.json" ]; then
-    cp "$REPO_DIR/config.example.json" "$REPO_DIR/config.json"
-    ok "Seeded config.json from config.example.json"
-  fi
-
   # ── Shell CWD notice (for B migration) ────────────────────────────────
   # If the user's shell was open in ~/openharness, that path no longer exists.
   printf "\n"