Commit Graph

21 Commits

Author SHA1 Message Date
ezl-keygraph bc8fd203ed feat: add npx CLI with monorepo, CI/CD, and ephemeral worker architecture (#256)
* feat: integrate npx CLI, CI/CD, and ephemeral worker architecture

Bring in changes from shannon-npx: npx-distributable CLI package (cli/),
semantic-release CI/CD workflows, ephemeral per-scan worker containers,
TOML config support, setup wizard, and workspace management.

Preserves all shannon-only changes: security hardening (localhost-bound
ports, MCP env allowlist, path traversal guard), updated benchmarks
(XBEN 19/31/35/44), README assets, and prompt injection disclaimer.

Applies security hardening to cli/infra/compose.yml as well.

* refactor: migrate to Turborepo + pnpm + Biome monorepo

Restructure into apps/worker, apps/cli, packages/mcp-server with
Turborepo task orchestration, pnpm workspaces, Biome linting/formatting,
and tsdown CLI bundling.

Key changes:
- src/ -> apps/worker/src/, cli/ -> apps/cli/, mcp-server/ -> packages/mcp-server/
- prompts/ and configs/ moved into apps/worker/
- npm replaced with pnpm, package-lock.json replaced with pnpm-lock.yaml
- Dockerfile updated for pnpm-based builds
- CLI logs command rewritten with chokidar for cross-platform reliability
- Router health checking added for auto-detected router mode
- Centralized path resolution via apps/worker/src/paths.ts

* fix: resolve all biome warnings and formatting issues

- Remove unnecessary non-null assertions where values are guaranteed
- Replace array index access with .at() for safer element retrieval
- Use local variables to avoid repeated process.env lookups
- Replace any types with unknown in functional utilities
- Use nullish coalescing for TOTP hash byte access
- Auto-format security patches to match biome config

* fix: pin pnpm to 10.12.1 in Dockerfile for catalog support

* fix: handle Esc cancellation in Bedrock setup flow

Replace p.group() with individual prompts and per-field cancel checks,
matching the pattern used by all other provider setup flows.

* feat: add optional model customization to Anthropic setup

* fix: resolve Docker bind mount permission errors on Linux

Use entrypoint-based UID remapping instead of --user flag so the
container's pentest user matches the host UID/GID, keeping bind-mounted
volumes writable. Git config moved to --system level to survive remapping.

* fix: show resumed workflow ID in splash screen URL

When resuming a workflow, the Temporal Web UI link pointed to the old
(terminated) workflow ID. Now extracts "New Workflow ID" from the resume
header in workflow.log, falling back to the original ID for fresh scans.

* style: fix biome formatting in docker.ts

* fix: align TypeScript config types with JSON Schema

- SuccessCondition.type: use schema values (url_contains,
  element_present, url_equals_exactly, text_contains) instead of
  stale values (url, cookie, element, redirect)
- Authentication.login_flow: mark optional to match schema which
  does not require it

* feat: mark GitHub release as latest during rollback

* fix: use native ARM64 runners for Docker multi-platform builds

Replace QEMU emulation with parallel native builds using a matrix
strategy (ubuntu-latest for amd64, ubuntu-24.04-arm for arm64).
Each platform pushes by digest, then a merge job creates the
multi-arch manifest list before signing with cosign.

* fix: resolve SessionMutex race condition with 3+ concurrent waiters

* fix: skip POSIX permission check on Windows

writeFileSync mode option is ignored on Windows, so config.toml
gets 0o666 and the guard rejects it.

* fix: resolve unsubstituted placeholders in report prompt

Remove unused {{GITHUB_URL}} placeholder and wire up {{AUTH_CONTEXT}}
with structured auth context (login type, username, URL, MFA status).

* fix: remove duplicate environment gate from merge-docker job

Move DOCKERHUB_USERNAME from vars to secrets so merge-docker can access
credentials without its own environment scope. This eliminates the
redundant double approval since build-docker already gates on
release-publish.

* fix: replace POSIX sleep binary with cross-platform async sleep

execFileSync('sleep') is unavailable on Windows. Use node:timers/promises
setTimeout instead, making ensureInfra async.

* fix: use session.json for workflow ID on resume instead of parsing workflow.log

On resume, workflow.log already exists with stale headers from the
previous run. The CLI poll found '====' immediately and extracted the
old workflow ID, producing a wrong Temporal Web UI URL.

Read the workflow ID from session.json instead — the worker writes
resume attempts there atomically. For fresh runs, poll until
originalWorkflowId appears. For resumes, poll until a new
resumeAttempts entry is appended.

* feat: add custom base URL support for Anthropic-compatible proxies

Support ANTHROPIC_BASE_URL + ANTHROPIC_AUTH_TOKEN to route SDK requests
through LiteLLM or any Anthropic-compatible proxy. Adds TUI wizard
option, TOML config mapping, credential validation, and preflight
endpoint reachability check via SDK query.

* fix: remove environment gates and add NPM_TOKEN to publish step

* feat: add beta release and rollback workflows with cosign signing

* fix: remove redundant checkout and pnpm steps from beta release workflow

* docs: normalize README commands to mode-neutral shorthand

Add a substitution note after Quick Start sections so all subsequent
examples use bare `shannon` instead of mixing `./shannon` and
`npx @keygraph/shannon`. Mode-specific commands (build, update,
uninstall) get inline annotations. Also fixes a broken command in the
Custom Base URL section.

* fix: remove redundant `update` command

Image is already auto-pulled by `ensureImage()` during `start` when the
pinned version tag is missing locally. Manual `update` was unnecessary.

* docs: add CLI package README stub

* docs: update README setup instructions for dual CLI modes

* docs: update announcement banner to npx availability

* feat: migrate from MCP tools to CLI based tools (#252)

* feat: migrate from MCP tools to CLI tools

* fix: restore browser action emoji formatters for CLI output

Adapt formatBrowserAction for playwright-cli commands, replacing the old
mcp__playwright__browser_* tool name matching removed during migration.

* fix: mount credential file to fixed container path for Vertex AI

GOOGLE_APPLICATION_CREDENTIALS was forwarded as-is to the container,
causing the relative host path to resolve against the repo mount
instead of the credentials mount. Now both local and npx modes mount
the resolved file to /app/credentials/google-sa-key.json and rewrite
the env var to match.

* feat: add git awareness and optional description field to config

* fix: drop redundant --ipc host flag from worker container

* fix: align announcement banner URL with main branch

* feat: add target URL reachability preflight check (#254)

* Moving asset benchmark graph image to this folder

* Move benchmark results to benchmark repo

Windows Defender flags exploit code in the pentest reports as false positives, forcing every Windows user to add a Defender exclusion just to clone Shannon.

* Updated README

* fix: case-insensitive grep for semantic-release version probe

* fix: harden supply chain security (#255)

* fix: patch smol-toml and tsdown vulnerabilities

Update smol-toml 1.6.0→1.6.1 (DoS via recursive comment parsing) and
tsdown 0.21.2→0.21.5 (picomatch ReDoS + method injection).

* fix: pin all unpinned dependency versions in Dockerfile

Pins subfinder v2.13.0, WhatWeb v0.6.3 (switched from git clone to
release tarball), schemathesis 4.13.0, addressable 2.8.9,
claude-code 2.1.84, and playwright-cli 0.1.1 for reproducible builds.

* fix: pin GitHub Actions to commit SHAs for supply chain security

* fix: pin GitHub Actions to commit SHAs in beta and rollback workflows
2026-03-27 02:34:29 +05:30
ezl-keygraph ae4bd45a30 feat: add custom base URL support for Anthropic-compatible endpoints (#246)
Support ANTHROPIC_BASE_URL + ANTHROPIC_AUTH_TOKEN in .env to route
SDK requests through proxies or gateways. Preflight now validates the
custom endpoint is reachable instead of skipping credential checks.
2026-03-18 00:53:44 +05:30
ezl-keygraph 6a76df2f4c feat: add Google Vertex AI support with service account auth 2026-03-03 02:42:46 +05:30
ezl-keygraph b62abfea4c feat: add three-tier model system with Bedrock support
Introduce small/medium/large model tiers so agents use the appropriate
model for their task complexity. Pre-recon uses Opus (large) for deep
source code analysis, most agents use Sonnet (medium), and report uses
Haiku (small) for summarization.

- Add src/ai/models.ts with ModelTier type and resolveModel()
- Add modelTier field to AgentDefinition
- Refactor claude-executor env var passthrough into loop
- Add Bedrock credential validation in preflight and CLI
- Pass through Bedrock and model env vars in docker-compose
2026-03-03 01:08:26 +05:30
ezl-keygraph 3a07f8a81f Merge pull request #140 from KeygraphHQ/feat/resume-workspace
feat: add named workspaces with resume support
2026-02-17 00:23:23 +05:30
ezl-keygraph 45e9f305ea refactor: remove ./shannon query CLI command
Query functionality is redundant with the Temporal Web UI
at http://localhost:8233. Removes query.ts, CLI handler,
npm script, and all documentation references.
2026-02-16 10:51:08 -08:00
ezl-keygraph 759c8d8093 fix: resolve named workspace workflow ID in logs command
Strip _shannon-* suffix from workflow IDs so logs command finds
audit-logs stored under the workspace name.
2026-02-16 20:25:09 +05:30
ezl-keygraph e85f6e0c73 feat: add MSYS path fix, Claude Code CLI, and Windows instructions
- Prevent MSYS from converting Unix container paths on Windows
- Install @anthropic-ai/claude-code globally in the Docker image
- Add Windows platform instructions to README
2026-02-16 20:11:08 +05:30
ezl-keygraph 2cf237d638 fix: resolve resume workflow ID in logs command
Strip _resume_* suffix to find the original workspace log file when
tailing logs for a resumed workflow.
2026-02-14 02:56:57 +05:30
ezl-keygraph ee5d7b80a0 feat: add named workspaces and workspace listing
Support WORKSPACE=<name> flag for friendly workspace names that
auto-resume if they exist or create a new named workspace otherwise.
Add ./shannon workspaces command to list all workspaces with status,
duration, and cost.
2026-02-13 20:53:18 +05:30
ezl-keygraph a5daa07178 fix: auto-detect Podman to avoid host-gateway incompatibility (#117)
Podman doesn't support the `host-gateway` special value in extra_hosts,
which causes container startup failures on macOS with Podman Desktop.

Changes:
- Add docker-compose.docker.yml with extra_hosts override for Docker
- Update shannon script to detect Podman via `command -v podman`
- Skip extra_hosts override when Podman is detected

This ensures:
- Docker users (Linux): Get host.docker.internal working automatically
- Podman users (macOS): Base config works without modification

Co-authored-by: ajmallesh <ajmallesh@gmail.com>
2026-02-11 01:51:48 +05:30
ezl-keygraph 24bcd29d97 fix: ensure deliverables directory is writable by container user (#116)
Pre-create the deliverables directory with proper permissions on the
host before starting containers, and surface permission errors instead
of silently swallowing them in save_deliverable.
2026-02-11 00:03:02 +05:30
ezl-keygraph 2e9ee2a11e fix: mount repos and configs directories into worker container (#107)
* feat: use static repos/ folder mount instead of dynamic TARGET_REPO

Replace dynamic per-run TARGET_REPO bind mount with a static ./repos:/repos
mount. Users place target repositories under ./repos/ and reference them by
folder name. This fixes stale mounts when switching targets and enables
running multiple scans concurrently against different repos.

* feat: mount configs directory into worker container

* docs: add instructions for repos and configs directory setup
2026-02-10 00:05:41 +05:30
Arjun Malleswaran 534b24901e Merge branch 'main' into feat/model-router 2026-01-20 10:26:27 -08:00
ajmallesh 65aa5625f6 fix: set write permissions on audit-logs and output directories for container user
The container runs as non-root user 'pentest' (UID 1001), but bind-mounted
directories are owned by the host user. Added chmod 777 after mkdir to ensure
the container can write to these directories.
2026-01-20 10:13:07 -08:00
ajmallesh f85c1bd193 refactor: simplify router to OpenAI and OpenRouter providers only
- Remove Gemini direct and DeepSeek provider configurations
- Keep OpenAI (gpt-5.2, gpt-5-mini) and OpenRouter (Gemini 3 models)
- Update documentation and environment examples
- Remove cost column from README providers table
2026-01-20 09:49:16 -08:00
ajmallesh d01980ce4b feat: add OpenRouter provider support for claude-code-router 2026-01-15 15:21:34 -08:00
ajmallesh d925c4942b feat: add DeepSeek provider support for claude-code-router
- Add DeepSeek provider config with Together.ai and official API support
- Configure deepseek and enhancetool transformers for reliable tool calling
- Add DEEPSEEK_API_KEY and DEEPSEEK_API_BASE env vars to docker-compose
- Update shannon CLI to recognize DeepSeek as valid router provider
2026-01-15 15:16:05 -08:00
ajmallesh 914860a6bd feat: add claude-code-router support for multi-model testing
- Add ROUTER=true flag to route requests through claude-code-router
- Add router service to docker-compose with profile-based activation
- Support OpenAI (gpt-4o) and Google Gemini (gemini-2.5-pro) as alternatives
- Add router-config.json with provider configuration template
- Update .env.example with provider API key options
- Document router mode limitations (cost tracking shows $0)
2026-01-15 14:14:37 -08:00
Arjun Malleswaran 20b5939e35 Feat/temporal (#52)
* refactor: modularize claude-executor and extract shared utilities

- Extract message handling into src/ai/message-handlers.ts with pure functions
- Extract output formatting into src/ai/output-formatters.ts
- Extract progress management into src/ai/progress-manager.ts
- Add audit-logger.ts with Null Object pattern for optional logging
- Add shared utilities: formatting.ts, file-io.ts, functional.ts
- Consolidate getPromptNameForAgent into src/types/agents.ts

* feat: add Claude Code custom commands for debug and review

* feat: add Temporal integration foundation (phase 1-2)

- Add Temporal SDK dependencies (@temporalio/client, worker, workflow, activity)
- Add shared types for pipeline state, metrics, and progress queries
- Add classifyErrorForTemporal() for retry behavior classification
- Add docker-compose for Temporal server with SQLite persistence

* feat: add Temporal activities for agent execution (phase 3)

- Add activities.ts with heartbeat loop, git checkpoint/rollback, and error classification
- Export runClaudePrompt, validateAgentOutput, ClaudePromptResult for Temporal use
- Track attempt number via Temporal Context for accurate audit logging
- Rollback git workspace before retry to ensure clean state

* feat: add Temporal workflow for 5-phase pipeline orchestration (phase 4)

* feat: add Temporal worker, client, and query tools (phase 5)

- Add worker.ts with workflow bundling and graceful shutdown
- Add client.ts CLI to start pipelines with progress polling
- Add query.ts CLI to inspect running workflow state
- Fix buffer overflow by truncating error messages and stack traces
- Skip git operations gracefully on non-git repositories
- Add kill.sh/start.sh dev scripts and Dockerfile.worker

* feat: fix Docker worker container setup

- Install uv instead of deprecated uvx package
- Add mcp-server and configs directories to container
- Mount target repo dynamically via TARGET_REPO env variable

* fix: add report assembly step to Temporal workflow

- Add assembleReportActivity to concatenate exploitation evidence files before report agent runs
- Call assembleFinalReport in workflow Phase 5 before runReportAgent
- Ensure deliverables directory exists before writing final report
- Simplify pipeline-testing report prompt to just prepend header

* refactor: consolidate Docker setup to root docker-compose.yml

* feat: improve Temporal client UX and env handling

- Change default to fire-and-forget (--wait flag to opt-in)
- Add splash screen and improve console output formatting
- Add .env to gitignore, remove from dockerignore for container access
- Add Taskfile for common development commands

* refactor: simplify session ID handling and improve Taskfile options

- Include hostname in workflow ID for better audit log organization
- Extract sanitizeHostname utility to audit/utils.ts for reuse
- Remove unused generateSessionLogPath and buildLogFilePath functions
- Simplify Taskfile with CONFIG/OUTPUT/CLEAN named parameters

* chore: add .env.example and simplify .gitignore

* docs: update README and CLAUDE.md for Temporal workflow usage

- Replace Docker CLI instructions with Task-based commands
- Add monitoring/stopping sections and workflow examples
- Document Temporal orchestration layer and troubleshooting
- Simplify file structure to key files overview

* refactor: replace Taskfile with bash CLI script

- Add shannon bash script with start/logs/query/stop/help commands
- Remove Taskfile.yml dependency (no longer requires Task installation)
- Update README.md and CLAUDE.md to use ./shannon commands
- Update client.ts output to show ./shannon commands

* docs: fix deliverable filename in README

* refactor: remove direct CLI and .shannon-store.json in favor of Temporal

- Delete src/shannon.ts direct CLI entry point (Temporal is now the only mode)
- Remove .shannon-store.json session lock (Temporal handles workflow deduplication)
- Remove broken scripts/export-metrics.js (imported non-existent function)
- Update package.json to remove main, start script, and bin entry
- Clean up CLAUDE.md and debug.md to remove obsolete references

* chore: remove licensing comments from prompt files to prevent leaking into actual prompts

* fix: resolve parallel workflow race conditions and retry logic bugs

- Fix save_deliverable race condition using closure pattern instead of global variable
- Fix error classification order so OutputValidationError matches before generic validation
- Fix ApplicationFailure re-classification bug by checking instanceof before re-throwing
- Add per-error-type retry limits (3 for output validation, 50 for billing)
- Add fast retry intervals for pipeline testing mode (10s vs 5min)
- Increase worker concurrent activities to 25 for parallel workflows

* refactor: pipeline vuln→exploit workflow for parallel execution

- Replace sync barrier between vuln/exploit phases with independent pipelines
- Each vuln type runs: vuln agent → queue check → conditional exploit
- Add checkExploitationQueue activity to skip exploits when no vulns found
- Use Promise.allSettled for graceful failure handling across pipelines
- Add PipelineSummary type for aggregated cost/duration/turns metrics

* fix: re-throw retryable errors in checkExploitationQueue

* fix: detect and retry on Claude Code spending cap errors

- Add spending cap pattern detection in detectApiError() with retryable error
- Add matching patterns to classifyErrorForTemporal() for proper Temporal retry
- Add defense-in-depth safeguard in runClaudePrompt() for $0 cost / low turn detection
- Add final sanity check in activities before declaring success

* fix: increase heartbeat timeout to prevent false worker-dead detection

Original 30s timeout was from POC spec assuming <5min activities. With
hour-long activities and multiple concurrent workflows sharing one worker,
resource contention causes event loop stalls exceeding 30s, triggering
false heartbeat timeouts. Increased to 10min (prod) and 5min (testing).

* fix: temporal db init

* fix: persist home dir

* feat: add per-workflow unified logging with ./shannon logs ID=<workflow-id>

- Add WorkflowLogger class for human-readable, per-workflow log files
- Create workflow.log in audit-logs/{workflowId}/ with phase, agent, tool, and LLM events
- Update ./shannon logs to require ID param and tail specific workflow log
- Add phase transition logging at workflow boundaries
- Include workflow completion summary with agent breakdown (duration, cost)
- Mount audit-logs volume in docker-compose for host access

* feat: configurable OUTPUT directory with auto-discovery

- Add OUTPUT=<path> option to write reports to custom directory
- Mount custom output dir as volume for container-to-host persistence
- Auto-discover workflow logs regardless of output path used
- Display host output path in workflow start message
- Add ASCII splash screen to ./shannon help

---------

Co-authored-by: ezl-keygraph <ezhil@keygraph.io>
2026-01-15 11:30:46 -08:00
Arjun Malleswaran 51e621d0d5 Feat/temporal (#46)
* refactor: modularize claude-executor and extract shared utilities

- Extract message handling into src/ai/message-handlers.ts with pure functions
- Extract output formatting into src/ai/output-formatters.ts
- Extract progress management into src/ai/progress-manager.ts
- Add audit-logger.ts with Null Object pattern for optional logging
- Add shared utilities: formatting.ts, file-io.ts, functional.ts
- Consolidate getPromptNameForAgent into src/types/agents.ts

* feat: add Claude Code custom commands for debug and review

* feat: add Temporal integration foundation (phase 1-2)

- Add Temporal SDK dependencies (@temporalio/client, worker, workflow, activity)
- Add shared types for pipeline state, metrics, and progress queries
- Add classifyErrorForTemporal() for retry behavior classification
- Add docker-compose for Temporal server with SQLite persistence

* feat: add Temporal activities for agent execution (phase 3)

- Add activities.ts with heartbeat loop, git checkpoint/rollback, and error classification
- Export runClaudePrompt, validateAgentOutput, ClaudePromptResult for Temporal use
- Track attempt number via Temporal Context for accurate audit logging
- Rollback git workspace before retry to ensure clean state

* feat: add Temporal workflow for 5-phase pipeline orchestration (phase 4)

* feat: add Temporal worker, client, and query tools (phase 5)

- Add worker.ts with workflow bundling and graceful shutdown
- Add client.ts CLI to start pipelines with progress polling
- Add query.ts CLI to inspect running workflow state
- Fix buffer overflow by truncating error messages and stack traces
- Skip git operations gracefully on non-git repositories
- Add kill.sh/start.sh dev scripts and Dockerfile.worker

* feat: fix Docker worker container setup

- Install uv instead of deprecated uvx package
- Add mcp-server and configs directories to container
- Mount target repo dynamically via TARGET_REPO env variable

* fix: add report assembly step to Temporal workflow

- Add assembleReportActivity to concatenate exploitation evidence files before report agent runs
- Call assembleFinalReport in workflow Phase 5 before runReportAgent
- Ensure deliverables directory exists before writing final report
- Simplify pipeline-testing report prompt to just prepend header

* refactor: consolidate Docker setup to root docker-compose.yml

* feat: improve Temporal client UX and env handling

- Change default to fire-and-forget (--wait flag to opt-in)
- Add splash screen and improve console output formatting
- Add .env to gitignore, remove from dockerignore for container access
- Add Taskfile for common development commands

* refactor: simplify session ID handling and improve Taskfile options

- Include hostname in workflow ID for better audit log organization
- Extract sanitizeHostname utility to audit/utils.ts for reuse
- Remove unused generateSessionLogPath and buildLogFilePath functions
- Simplify Taskfile with CONFIG/OUTPUT/CLEAN named parameters

* chore: add .env.example and simplify .gitignore

* docs: update README and CLAUDE.md for Temporal workflow usage

- Replace Docker CLI instructions with Task-based commands
- Add monitoring/stopping sections and workflow examples
- Document Temporal orchestration layer and troubleshooting
- Simplify file structure to key files overview

* refactor: replace Taskfile with bash CLI script

- Add shannon bash script with start/logs/query/stop/help commands
- Remove Taskfile.yml dependency (no longer requires Task installation)
- Update README.md and CLAUDE.md to use ./shannon commands
- Update client.ts output to show ./shannon commands

* docs: fix deliverable filename in README

* refactor: remove direct CLI and .shannon-store.json in favor of Temporal

- Delete src/shannon.ts direct CLI entry point (Temporal is now the only mode)
- Remove .shannon-store.json session lock (Temporal handles workflow deduplication)
- Remove broken scripts/export-metrics.js (imported non-existent function)
- Update package.json to remove main, start script, and bin entry
- Clean up CLAUDE.md and debug.md to remove obsolete references

* chore: remove licensing comments from prompt files to prevent leaking into actual prompts

* fix: resolve parallel workflow race conditions and retry logic bugs

- Fix save_deliverable race condition using closure pattern instead of global variable
- Fix error classification order so OutputValidationError matches before generic validation
- Fix ApplicationFailure re-classification bug by checking instanceof before re-throwing
- Add per-error-type retry limits (3 for output validation, 50 for billing)
- Add fast retry intervals for pipeline testing mode (10s vs 5min)
- Increase worker concurrent activities to 25 for parallel workflows

* refactor: pipeline vuln→exploit workflow for parallel execution

- Replace sync barrier between vuln/exploit phases with independent pipelines
- Each vuln type runs: vuln agent → queue check → conditional exploit
- Add checkExploitationQueue activity to skip exploits when no vulns found
- Use Promise.allSettled for graceful failure handling across pipelines
- Add PipelineSummary type for aggregated cost/duration/turns metrics

* fix: re-throw retryable errors in checkExploitationQueue

* fix: detect and retry on Claude Code spending cap errors

- Add spending cap pattern detection in detectApiError() with retryable error
- Add matching patterns to classifyErrorForTemporal() for proper Temporal retry
- Add defense-in-depth safeguard in runClaudePrompt() for $0 cost / low turn detection
- Add final sanity check in activities before declaring success

* fix: increase heartbeat timeout to prevent false worker-dead detection

Original 30s timeout was from POC spec assuming <5min activities. With
hour-long activities and multiple concurrent workflows sharing one worker,
resource contention causes event loop stalls exceeding 30s, triggering
false heartbeat timeouts. Increased to 10min (prod) and 5min (testing).

* fix: temporal db init

* fix: persist home dir

* feat: add per-workflow unified logging with ./shannon logs ID=<workflow-id>

- Add WorkflowLogger class for human-readable, per-workflow log files
- Create workflow.log in audit-logs/{workflowId}/ with phase, agent, tool, and LLM events
- Update ./shannon logs to require ID param and tail specific workflow log
- Add phase transition logging at workflow boundaries
- Include workflow completion summary with agent breakdown (duration, cost)
- Mount audit-logs volume in docker-compose for host access

---------

Co-authored-by: ezl-keygraph <ezhil@keygraph.io>
2026-01-15 10:36:11 -08:00