feat: add install-hooks.sh for lake build ingestion post-commit hook

- scripts/install-hooks.sh: installs post-commit hook that runs
  lake_build_ingest.py after each commit (async, non-blocking)
- Build results ingested into Postgres on neon-64gb
- Also: ii-agent systemd user service on port 8001, Authentik admin setup

scripts/install-hooks.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+# install-hooks.sh — Install the post-commit hook that automates lake build
+# ingestion into Postgres.
+#
+# Run this from the repo root after cloning:
+#   bash scripts/install-hooks.sh
+
+HOOKS_DIR="$(git rev-parse --git-dir)/hooks"
+cat > "$HOOKS_DIR/post-commit" << 'HOOKEOF'
+#!/bin/sh
+# Git LFS post-commit hook
+command -v git-lfs >/dev/null 2>&1 || { printf >&2 "\n%s\n\n" "This repository is configured for Git LFS but 'git-lfs' was not found on your path. If you no longer wish to use Git LFS, remove this hook by deleting the 'post-commit' file in the hooks directory (set by 'core.hookspath'; usually '.git/hooks')."; exit 2; }
+git lfs post-commit "$@"
+
+# Lake build ingestion (async, non-blocking)
+# Runs the build and ingests results into Postgres on neon-64gb.
+python3 "/home/allaun/Research Stack/4-Infrastructure/shim/lake_build_ingest.py" Compiler --dir /home/allaun/SilverSight --actor opencode >/dev/null 2>&1 &
+HOOKEOF
+chmod +x "$HOOKS_DIR/post-commit"
+echo "Installed post-commit hook in $HOOKS_DIR/post-commit"