chore: release v2.1.0 — Reliability + Zero-Friction Install

[NickCirv]

Release PR — v2.1.0

Bumps engramx from 2.0.2 to 2.1.0. No code changes beyond the version bump, package-lock.json sync, and CHANGELOG header rehoming.

Everything else has already landed on main via:

• PR fix(watcher): prune graph nodes on file delete + rename (closes #9) #12 (@gabiudrescu): watcher prune on delete/rename
• PR feat(cli): engram reindex <file> + optional --auto-reindex hook (#8) #13 (@gabiudrescu): engram reindex CLI + install-hook --auto-reindex
• PR v2.1: Reliability + Zero-Friction Install (update / doctor / setup + #11 fix + #14 Bash parser) #15: v2.1 seamless install track (update / doctor / setup) + AST and LSP providers report unavailable=true despite enabled=true (path resolution bug in AST grammar detection) #11 fix + Feature: auto-reindex on Bash file ops (rm/mv/cp/git-rm/redirection) #14 Bash-ops parser

Post-merge checklist (irreversible actions — your hands)

# 1. Tag the release
git checkout main
git pull origin main
git tag -a v2.1.0 -m "v2.1.0 Reliability + Zero-Friction Install"
git push --tags

# 2. npm publish (requires 2FA)
npm publish

# 3. GitHub Release with generated notes
gh release create v2.1.0 --generate-notes \
  --title "v2.1.0 — Reliability + Zero-Friction Install"

# 4. Smoke-test the published version on a fresh machine
#    (verify the global-install flattened-bundle #11 fix)
npm install -g engramx@2.1.0
cd /tmp/new-project && engram setup -y && engram doctor

What ships

See CHANGELOG.md §2.1.0 for the full notes. Highlights:

• Seamless install — engram setup drops first-value from 4 commands to 1
• Self-update — engram update with passive notify, zero telemetry
• Diagnostics — engram doctor wraps component probes + remediation hints
• Fix AST and LSP providers report unavailable=true despite enabled=true (path resolution bug in AST grammar detection) #11 — AST grammar detection works on global installs (was broken in v2.0.2 for every npm install -g user)
• Fix Feature: auto-reindex on Bash file ops (rm/mv/cp/git-rm/redirection) #14 half — Bash auto-reindex parser (opt-in via ENGRAM_AUTO_REINDEX=1)
• Contributor credits — @gabiudrescu (PR fix(watcher): prune graph nodes on file delete + rename (closes #9) #12, feat(cli): engram reindex <file> + optional --auto-reindex hook (#8) #13), @ttessarolo (AST and LSP providers report unavailable=true despite enabled=true (path resolution bug in AST grammar detection) #11 forensics)

Not in this release

• PR fix: prevent OOM crashes during init on large codebases #6 (OOM) — contributor's PR still dirty + red. Will land in v2.1.1 or v2.2 after rebase.
• v2.2 Serena provider — scoped in trilogy spec, starts after v2.1.0 publishes and stabilizes.
• v3.0 Landmines — placeholder in trilogy spec, full spec written after v2.2 ships.

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