release: bump version to v0.6.0 with CHANGELOG

Stable Dolt Gas Town release. Key changes: Dolt backend integration,
dashboard overhaul with SSE, centralized hook management, wisp compaction,
agent-agnostic provisioning, 17+ code review bug fixes merged.

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

Author: steveyegge

CHANGELOG.md

@@ -7,6 +7,180 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.6.0] - 2026-02-14
+
+Stable Dolt Gas Town — the multi-agent coordination engine running on Dolt-backed beads.
+
+### Added
+
+#### Dolt Backend Integration
+- **`gt dolt` command** - Server management, health status, migration, and rollback
+- **`gt dolt migrate`** - Orchestrated SQLite-to-Dolt migration with `--dry-run` support
+- **`gt dolt rollback`** - Restore from migration backups
+- **Branch-per-polecat write isolation** - Each polecat gets its own Dolt branch to prevent lock contention
+- **Dolt server health monitoring** - Daemon checks latency, connections, and disk usage (30s intervals)
+- **Proactive Dolt alerting** - Daemon alerts mayor and witnesses on crash-loops or unhealthy state
+- **Max-connections admission control** - Prevent connection storms during batch sling
+- **Dolt-only guardrails** - Prevent SQLite from sneaking back into the codebase
+- **Migration readiness doctor checks** - Pre-flight validation for Dolt migration
+
+#### Dashboard Overhaul
+- **Server-Sent Events (SSE)** - Real-time dashboard updates replacing 10s polling
+- **Interactive command palette** - Autocomplete, recent history, and contextual suggestions
+- **Mail compose from dashboard** - Send mail directly from the web UI
+- **Issue management actions** - Work panel detail view with sling buttons
+- **Convoy drill-down** - Tracked issues and completion counts
+- **Per-rig health dashboard** - Drill-down views for individual rigs
+- **Rich activity timeline** - Filtering and search across agent events
+- **Agent terminal preview** - Sessions panel shows live terminal state
+- **Toast notifications** - Escalation actions with visual feedback
+- **Crew vs polecat distinction** - Workers panel differentiates agent types
+
+#### Hook Management System
+- **`gt hooks sync`** - Centralized hook management with diff and merge
+- **`gt hooks list`** - View installed hooks across rigs
+- **`gt hooks init`** - Initialize hooks for a rig
+- **Per-matcher merge logic** - Granular hook configuration
+- **Integration with `gt rig add` and `gt doctor`** - Auto-install and validation
+
+#### Wisp Lifecycle
+- **`gt compact` command** - TTL-based wisp compaction
+- **Key Record Chronicle (KRC)** - Forensic value decay model with auto-prune scheduling
+- **`bd promote` integration** - Promote wisps to persistent beads
+- **Role bead TTL overrides** - Per-role compaction rules
+- **Wisp type tagging** - `wisp_type=patrol`, `gc_report` for structured lifecycle
+
+#### Agent & Coordination
+- **Agent-agnostic command provisioning** - Support for OpenCode, Cursor, Augment, and others
+- **Dog system** - `gt dog done`, delayed dispatch, session management templates
+- **`gt warrant` command** - File-based warrant management
+- **Fan-out/gather pattern** - Parallel steps in molecule formulas
+- **`gt mol dag`** - DAG visualization for molecules
+- **`--stdin` flags** - Shell-quoting-safe input for `gt nudge`, `gt mail send`, `gt sling`, `gt handoff`, `gt escalate`
+- **`gt hook clear`** - Alias for `gt unhook`
+- **Convoy hooking** - Complete implementation for hooking convoy work
+
+#### Doctor & Diagnostics
+- **Streaming output** - Real-time check progress display
+- **`--slow` flag** - Highlight slow checks
+- **Database prefix check** - Detect rig config mismatches
+- **Stale agent beads check** - Detect beads for removed crew
+- **Migration readiness checks** - SQLite-to-Dolt pre-flight validation
+- **Beads-sync worktree health** - Validate worktree sync state
+
+#### Infrastructure
+- **`gt rig settings`** - Per-rig configuration management
+- **`gt rig --adopt`** - Register existing directories as rigs
+- **`GT_COMMAND` env var** - Configurable CLI name
+- **`GIT_CEILING_DIRECTORIES`** - Prevent umbrella commits across rigs
+- **Dark mode CLI theme** - `gt theme` support
+- **Clipboard integration** - tmux clipboard in mayor sessions
+- **`--no-merge` sling flag** - Skip merge queue when needed
+- **Trail hook activity** - Real event tracing from events log
+- **Help `--long` descriptions** - Added to 12 gt commands
+
+### Fixed
+
+#### Concurrency & Race Conditions
+- **NotificationManager thread safety** - Added mutex protection
+- **TOCTOU race in Dolt server startup** - Atomic initialization
+- **TOCTOU race in FindOrCreateRigBeadsDir** - Safe directory creation
+- **Polecat spawn race** - Deferred session start prevents premature nudge
+- **Zombie detection race** - SessionRecreated guard prevents killing newly-spawned polecats
+- **Post-claim verification** - Prevents double-processing in merge queue
+- **Sling description read-modify-write race** - Eliminated concurrent mutation
+- **Agent bead read-modify-write race** - Audit log path and redirect safety
+- **Polecat Manager and Dog Manager** - Added concurrency protection
+- **EnsureMetadata file locking** - Prevents read-modify-write race
+- **Concurrent sling protection** - Prevents orphaned hooked work
+
+#### Agent Lifecycle
+- **Zombie polecat detection** - Proactive detection in witness patrol with dedup
+- **Orphan cleanup** - Scope process cleanup to Gas Town processes only
+- **Polecat list accuracy** - tmux session state prevents false 'done' status
+- **Witness handler error propagation** - HandleMerged returns errors instead of swallowing
+- **Stale session cleanup** - Unified `isSessionProcessDead`/`isSessionStale`
+- **Polecat no-work termination** - Empty hook triggers clean termination, not escalation
+- **Self-nuke verification** - Verify remote push + check open MRs before cleanup
+- **RepairWorktree safety** - Clean up polecatDir on agent bead retry failure
+- **Sling rollback** - Rollback on partial failure prevents zombie artifacts
+
+#### Session Stability
+- **Session name parsing** - Support for hyphenated rig names
+- **Handoff race prevention** - Remove KillPaneProcessesExcluding race condition
+- **`--agent` override preserved** - Persists across handoff via tmux session env
+- **Deacon idle detection** - Detects stale molecule progress for alive-but-not-patrolling state
+- **Boot ephemeral** - Fresh each tick to prevent stale state
+- **Flock-based locking** - Use flock instead of session check in AcquireLock
+
+#### Cross-Rig & Routing
+- **New rigs share HQ dolt_database** - Cross-database bead visibility
+- **Cross-rig agent bead operations** - Route to correct database
+- **Convoy cross-rig tracking** - Refresh external rig issue status
+- **External issue ID unwrapping** - Handle `external:prefix:id` format in convoys
+
+#### Code Review Fixes (17 merged)
+- **Message.Validate()** - Now checks From, Subject, and ID
+- **bd show --json parsing** - Consistent array parsing across commands
+- **findCleanupWisp** - JSON parsing replaces fragile string matching
+- **SetAgentStateWithRetry** - Documented warn-only rationale
+- **DetectZombiePolecats** - Separated empty cleanup_status from clean
+- **Duplicate function consolidation** - isSessionStale delegates to isSessionProcessDead
+- **Dolt server resource monitoring** - Health check includes latency/connections/disk
+- **GetActiveConnectionCount timeout** - 10s timeout prevents hanging polecat spawn
+- **Heartbeat interval** - Dedicated 30s Dolt health check separate from 3min heartbeat
+- **bd daemon git pull recovery** - Auto-stash dirty trees, escalate after 3 failures
+- **gt dolt init** - Detect and repair workspace pointing at nonexistent database
+
+#### Miscellaneous
+- **Atomic file writes** - SaveToFile and WriteRoutes use atomic operations
+- **Mail routing** - Resolve cross-rig agent addresses, handle overseer address
+- **Fan-out delivery** - Collect errors instead of silently losing messages
+- **Message ID uniqueness** - Clear ID on fan-out copies
+- **Daemon git pull** - Auto-stash dirty trees, escalate persistent failures
+
+### Changed
+
+- **SQLite removed from gastown** - Scorched-earth removal; Dolt is the only backend
+- **bd daemon code removed** - Gas Town is Dolt-native, no daemon needed
+- **Mayor work philosophy** - Balanced sling-vs-fix guidance replaces "never edit code"
+- **Dolt server mode default** - Server mode is the standard, not embedded
+- **Refinery local branches** - Merges from local branches, no origin fetch
+- **Cost recording decoupled** - From Dolt database for flexibility
+
+### Removed
+
+- **BdSemaphore** - Removed concurrent bd process limiter
+- **`--no-boot` flag** - Removed from sling
+- **bd sync references** - Gas Town is Dolt-native
+- **SQLite storage** - Fully removed from codebase
+- **Mail check cache** - Removed stale caching
+
+### Known Limitations
+
+- **Molecules are beta** - Step ordering and error recovery have known edge cases
+- **Cross-rig dep resolution** - Works via prefix routes but edge cases remain with unregistered rigs
+- **`bd search` panic** - joinIter panic on certain queries (upstream Dolt issue, workaround: avoid complex joins)
+- **Wisp accumulation** - Witness patrol wisps can accumulate; use `gt compact` periodically
+
+### Contributors
+
+Thanks to all contributors for this release:
+- @KeithWyatt - Refinery stale claim fix (#521)
+- @Henry-E - Molecule step ordering fix (#1376)
+- @peterkc - Dolt gitignore entries (#1714)
+- @corymhall - Convoy stranded detection (#1358), bootstrap liveness (#1357)
+- @rod-nxtlevel - Dashboard panels (#1351, #1353, #1354, #1360-1364)
+- @julianknutsen - E2E containerized tests (#1422)
+- @material-lab-io - Session name fix (#1421)
+- @l0g1x - Refinery stability (#1419)
+- @seanbearden - DoltHub auto-create (#1416), non-destructive nudge (#1405)
+- @sfncore - TOON format support (#1407)
+- @joshuavial - Submodule support (#1237)
+- @jason-curtis - Arbitrary tmux sessions (#1242)
+- @xcawolfe-amzn - Kiro CLI (#1278)
+- And many more community contributors
+
 ## [0.5.0] - 2026-01-22
 
 ### Added