Implements README.md injection similar to existing AGENTS.md injector.
Automatically injects README.md contents when reading files, searching
upward from file directory to project root.

Closes #14

🤖 GENERATED WITH ASSISTANCE OF [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-opencode)

Implemented full Claude Code plugin format support allowing installation
via `/plugin install` command. This restructures the project to be a
valid Claude Code plugin.

Changes:
- Added .claude-plugin/plugin.json manifest with metadata
- Created agents/ directory with 11 specialized subagent markdown files
- Created commands/ directory with 12 slash command markdown files
- Created skills/ directory with 3 skills (ultrawork, git-master, frontend-ui-ux)
- Added hooks/hooks.json for UserPromptSubmit and Stop hooks
- Added scripts/keyword-detector.sh for magic keyword detection
- Added scripts/stop-continuation.sh for todo continuation enforcement
- Updated README.md with plugin installation instructions

Plugin structure:
- .claude-plugin/plugin.json (manifest)
- agents/*.md (11 agents: oracle, librarian, explore, etc.)
- commands/*.md (12 commands: sisyphus, ultrawork, plan, etc.)
- skills/*/SKILL.md (3 skills)
- hooks/hooks.json (hook configuration)

Users can now install via:
- /plugin install oh-my-claude-sisyphus
- /plugin marketplace add Yeachan-Heo/oh-my-claude-sisyphus

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

…-yeongyu#309)

Critical fixes:
- Bug #1: SubagentStop hook defaulted all agents to 'failed' because SDK
  doesn't provide `success` field. Now defaults to 'completed' when undefined.
- Bug code-yeongyu#4: Token stats lost across TokenTracker instances. Constructor now
  restores session stats from global state for the same session ID.
- Bug code-yeongyu#5: Ultrawork session isolation bypassed when both session IDs were
  undefined (undefined === undefined). Now rejects all falsy session IDs.

High priority fixes:
- Bug code-yeongyu#6: Cancel skill force-clear missed 12+ state files (boulder,
  hud-state, subagent-tracking, checkpoints, etc). Added comprehensive list.
- Bug code-yeongyu#7: HUD semverCompare() returned NaN on pre-release versions like
  "3.9.5-beta". Fixed to use parseInt and handle pre-release ordering.
- Bug code-yeongyu#8: Silent JSON parse failures in critical state readers. Added
  error logging to ralph and ultrawork state readers.
- Bug code-yeongyu#9: Stale task detection had no default behavior when onStaleSession
  callback was not configured. Now auto-cleans after 2x threshold.
- Bug code-yeongyu#10: Hardcoded 3-architect assumption in validation. Extracted to
  REQUIRED_ARCHITECTS constant.

Medium priority fixes:
- Bug code-yeongyu#11: Auto-invoke history used non-atomic writes. Now uses
  atomicWriteJson to prevent corruption from concurrent sessions.
- Bug code-yeongyu#12: Ecomode docs said "all tasks" use Haiku, contradicting the
  escalation paths. Clarified to "most tasks" with upgrade criteria.
- Bug code-yeongyu#13: Added safeUnlinkSync/safeRmSync utilities to prevent ENOENT
  crashes during cleanup operations.
- Bug code-yeongyu#14: State files containing user prompts written with 0644
  permissions. Now writes with 0600 (owner-only read/write).
- Bug code-yeongyu#15: Model names recorded inconsistently (e.g., 'claude-3-5-haiku'
  vs 'claude-haiku-4'). Now normalizes at recording time via exported
  normalizeModelName().

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

…sistence

Three real failures surfaced in the first end-to-end run against
v3.17.0 -> v3.17.4 (116 commits). Addressing all three:

1. Rate limiting on pass 1
   Copilot Student / Pro tier caps low-tier models at 15 req/min. The
   first run blew through the limit at request #15 and returned instant
   429 fallbacks ("NEEDS_REVIEW" with no reasoning) for commits 16-116.
   Add a RateLimiter (requests-per-minute, simple interval throttle) and
   wire it through classifyCommitsSequentially. Default 12 rpm stays
   comfortably under the ceiling.

2. Dirty working tree blocked batch-builder checkout
   `bun install` without --frozen-lockfile modifies bun.lock, then
   createBranchFromTag calls `git checkout -b` which refuses to proceed
   with:
     error: Your local changes to the following files would be overwritten
            by checkout: bun.lock
   Add resetWorkingTree() (git reset --hard HEAD + git clean -fdx except
   .analyzer-output) and call it before batch-building. Safe because the
   CI clone is ephemeral and never pushed.

3. Crashes lost all partial progress
   When pass 1 or later steps failed, the workflow uploaded nothing
   useful since artifacts were only written at the end. Rewrite
   runPipeline to writeArtifact after each pass:
     classifications.initial.json (after pass 1)
     verifications.json + classifications.json (after pass 2)
     synthesis.json (after pass 3)
     batches.json (after batch-builder)
     pipeline-result.json (combined, at the end)
   Combined with `if: always()` on the upload step, this guarantees
   post-mortem data even on crash.

classifyCommitsSequentially signature changed from positional to an
options object to make the new requestsPerMinute parameter optional
without threading boilerplate through callers.

…sistence (#4)

Three real failures surfaced in the first end-to-end run against
v3.17.0 -> v3.17.4 (116 commits). Addressing all three:

1. Rate limiting on pass 1
   Copilot Student / Pro tier caps low-tier models at 15 req/min. The
   first run blew through the limit at request #15 and returned instant
   429 fallbacks ("NEEDS_REVIEW" with no reasoning) for commits 16-116.
   Add a RateLimiter (requests-per-minute, simple interval throttle) and
   wire it through classifyCommitsSequentially. Default 12 rpm stays
   comfortably under the ceiling.

2. Dirty working tree blocked batch-builder checkout
   `bun install` without --frozen-lockfile modifies bun.lock, then
   createBranchFromTag calls `git checkout -b` which refuses to proceed
   with:
     error: Your local changes to the following files would be overwritten
            by checkout: bun.lock
   Add resetWorkingTree() (git reset --hard HEAD + git clean -fdx except
   .analyzer-output) and call it before batch-building. Safe because the
   CI clone is ephemeral and never pushed.

3. Crashes lost all partial progress
   When pass 1 or later steps failed, the workflow uploaded nothing
   useful since artifacts were only written at the end. Rewrite
   runPipeline to writeArtifact after each pass:
     classifications.initial.json (after pass 1)
     verifications.json + classifications.json (after pass 2)
     synthesis.json (after pass 3)
     batches.json (after batch-builder)
     pipeline-result.json (combined, at the end)
   Combined with `if: always()` on the upload step, this guarantees
   post-mortem data even on crash.

classifyCommitsSequentially signature changed from positional to an
options object to make the new requestsPerMinute parameter optional
without threading boilerplate through callers.