chore: consolidate all shell scripts into hh/scripts/

Move the 14 hack-house scripts (bootstrap, lets-hack, host-room, smoke,
demo/film harnesses, connect/join, ensure-docker/vbox) into hh/scripts/
and fix their path resolution for the deeper location. Update cross-refs:
sbx.rs script consts, app.rs hints, CI, direnv .envrc, README, and docs.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

hh/scripts/bootstrap.sh

@@ -0,0 +1,105 @@
+#!/usr/bin/env bash
+# bootstrap.sh — one-shot setup for hack-house
+#
+# Gets a fresh clone ready to run: checks prerequisites, creates a Python venv
+# for the server, installs its dependencies, and builds the Rust client.
+#
+# usage:
+#   ./bootstrap.sh              # full setup (venv + deps + client + AI layer)
+#   ./bootstrap.sh --release    # build the client in release mode
+#   ./bootstrap.sh --no-ai      # skip the AI layer (no Ollama install / model pull)
+#   ./bootstrap.sh --yes        # don't prompt during the AI layer (install / pull)
+#   ./bootstrap.sh --check      # only report what's installed; change nothing
+#   ./bootstrap.sh -h | --help  # this help
+#
+# The AI layer (local Ollama + a default model for the /ai agent) is set up by
+# default so the agent works out of the box and nobody hits "model not found".
+# It still prompts before installing/pulling on an interactive terminal — skip
+# the whole thing with --no-ai, or skip the prompts with --yes.
+#
+# After it finishes, spin up a local test session with:  cd hh && ./scripts/lets-hack.sh
+set -uo pipefail
+
+ROOT="$(cd "$(dirname "$0")/../.." && pwd)"
+VENV="$ROOT/.venv"
+HH_DIR="$ROOT/hh"
+
+RELEASE=0
+CHECK_ONLY=0
+DO_AI=1
+ASSUME_YES=0
+for arg in "$@"; do
+    case "$arg" in
+        --release) RELEASE=1 ;;
+        --check)   CHECK_ONLY=1 ;;
+        --no-ai)   DO_AI=0 ;;
+        --yes|-y)  ASSUME_YES=1 ;;
+        -h|--help|-help) grep '^#' "$0" | sed 's/^# \{0,1\}//'; exit 0 ;;
+        *) echo "✖ unknown arg: $arg (try --release / --no-ai / --yes / --check / --help)" >&2; exit 2 ;;
+    esac
+done
+
+have() { command -v "$1" >/dev/null 2>&1; }
+
+# 1. Prerequisites. python3 + cargo are required; tmux/docker/multipass are
+#    optional (only needed for the test harness / certain sandbox backends).
+echo "checking prerequisites…"
+missing=0
+for bin in python3 cargo; do
+    if have "$bin"; then echo "  ✓ $bin ($($bin --version 2>&1 | head -1))"
+    else echo "  ✖ $bin — REQUIRED"; missing=1; fi
+done
+for bin in tmux docker multipass direnv; do
+    if have "$bin"; then echo "  ✓ $bin (optional)"
+    else echo "  · $bin not found (optional)"; fi
+done
+if [[ $missing -eq 1 ]]; then
+    echo "✖ install the required tools above, then re-run ./bootstrap.sh" >&2
+    exit 1
+fi
+
+if [[ $CHECK_ONLY -eq 1 ]]; then
+    echo "--check: prerequisites OK, no changes made"
+    exit 0
+fi
+
+# 2. Python venv + server dependencies.
+if [[ ! -d "$VENV" ]]; then
+    echo "creating venv at $VENV…"
+    python3 -m venv "$VENV" || { echo "✖ could not create venv" >&2; exit 1; }
+fi
+echo "installing server dependencies…"
+"$VENV/bin/pip" install --quiet --upgrade pip || true
+"$VENV/bin/pip" install --quiet -r "$ROOT/requirements.txt" \
+    || { echo "✖ pip install failed — see output above" >&2; exit 1; }
+echo "  ✓ server deps installed into .venv"
+
+# 3. Build the Rust client.
+echo "building the client…"
+if [[ $RELEASE -eq 1 ]]; then
+    ( cd "$HH_DIR" && cargo build --release ) || { echo "✖ cargo build --release failed" >&2; exit 1; }
+    echo "  ✓ client built: hh/target/release/hack-house"
+else
+    ( cd "$HH_DIR" && cargo build ) || { echo "✖ cargo build failed" >&2; exit 1; }
+    echo "  ✓ client built: hh/target/debug/hack-house"
+fi
+
+# 4. AI layer (on by default): install Ollama + pull the default model so the
+#    /ai agent works out of the box and nobody hits "model not found" later. The
+#    logic lives in bootstrap-ai.sh; --ai-only skips its baseline re-run (we just
+#    did it). Declining/failing here is non-fatal — the baseline setup still
+#    stands and the AI layer can be added later with ./bootstrap-ai.sh.
+if [[ $DO_AI -eq 1 ]]; then
+    ai_args=(--ai-only)
+    [[ $ASSUME_YES -eq 1 ]] && ai_args+=(--yes)
+    "$ROOT/hh/scripts/bootstrap-ai.sh" "${ai_args[@]}" \
+        || echo "⚠ AI layer not completed — re-run ./bootstrap-ai.sh when ready" >&2
+fi
+
+echo
+echo "ready. next steps:"
+echo "    cd hh && ./scripts/lets-hack.sh  # local test session (server + clients in tmux)"
+echo "    # or run the server + client by hand — see README.MD"
+if [[ $DO_AI -eq 0 ]]; then
+    echo "    # AI layer skipped (--no-ai); add it later with hh/scripts/bootstrap-ai.sh"
+fi