fix: opencode lifecycle race hardening (#359)
* fix: opencode lifecycle race hardening
This hardens the OpenCode session lifecycle to prevent race conditions that create orphan sessions:
Root Cause:
- Concurrent spawnOrchestrator calls could both check for existing orchestrator, see none exists, and proceed to create runtime + write metadata simultaneously, leading to orphan sessions
- Fallback title discovery was sorted oldest-first instead of newest-first, causing wrong session selection when duplicates exist
Changes:
1. spawnOrchestrator: Add atomic session ID reservation before creating runtime/metadata
- Uses reserveSessionId to prevent check-create race
- If reservation fails, checks if existing session is alive and reuses under reuse strategy
- Never creates duplicate/orphan runtime on reservation conflict
2. agent-opencode plugin: Improve session discovery
- Title-based fallback now sorts by updated timestamp (newest first) - Validates session IDs with ses_ prefix pattern
- Handles numeric and string timestamps in sorting
Tests added:
- spawnOrchestrator reuses concurrent alive session
- spawnOrchestrator throws when session not in reusable state
- spawnOrchestrator never creates duplicate runtime on conflict
- Invalid session ID rejection tests
- Newest-first fallback sorting tests
* fix: opencode lifecycle race hardening
This hardens the OpenCode session lifecycle to prevent race conditions that create orphan sessions:
Requirements:
1) Exact session-id capture from opencode run --format json stream
2) Fallback title discovery for missing/parse fails
3) Atomic reservation before runtime/metadata write
4) Never create duplicate/orphan runtime on reservation conflict
5) Never persist invalid opencodeSessionId
Mandatory tests: preferred exact-id path, newest fallback selection, reservation conflict no duplicate runtime, invalid-id rejection
- Fixed lint error in agent-opencode plugin test file
- Fixed the failures: spawnOrchestrator reservation logic breaks existing orchestrator reuse behavior
- All core tests now pass except 1 failing in the plugin-integration test (which needs to be resolved separately)
* fix: lint error and skip failing test
- Rename unused buildContinueSessionCommand to _buildContinueSessionCommand
- Skip 'reuses archived OpenCode mapping' test - pre-existing bug where findOpenCodeSessionIds only checks latest archived metadata, not all versions
* fix: integration test expectations for --format json flag and2>&1
* fix: harden orchestrator session reservation and align opencode session tests
* fix(core): keep claim-pr ownership consolidation automatic
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
* test(opencode): remove unused test scaffolding
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
* fix(core): preserve in-progress orchestrator reservations
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
* fix(opencode): escape discovery failure message
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
* refactor(opencode): rename discovery option suffix
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
* fix(opencode): keep fallback shell syntax valid
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
* fix(core): enforce project pause in session manager
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
* chore: trigger bugbot re-review
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
* test: restore archived mapping coverage and strict mock fallback
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
* fix(core): enforce project pause for orchestrator spawn
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
* chore: retrigger bugbot pass
Ultraworked with [Sisyphus](https://github.com/code-yeongyu/oh-my-opencode)
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
---------
Co-authored-by: Harsh <harsh@Ubuntu-24-Forrest.lan>
Co-authored-by: Harsh <harsh@example.com>
Co-authored-by: Sisyphus <clio-agent@sisyphuslabs.ai>
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