refactor(cli): remove migrated Organon commands

[birdmanmandbir]

Summary

• remove all duplicated TTAL project commands, including ttal project resolve --json
• remove all TTAL user Git commands: push, tag, pull, and pr
• remove unused daemon routes for push, tag, pull, PR creation/modification, and CI inspection
• retain only task-lifecycle PR lookup, validation, merge, and mergeability operations
• update documentation, worker prompts, agent templates, and runtime guidance to use project, og git, and og pr

Verification

• go test ./...
• go build ./...
• verified ttal project is rejected and standalone project remains the project interface

make ci remains blocked by 51 existing lint findings outside this change.

[birdmanmandbir]

Triage Update

Fixed

• Development run example used task get — changed it to the TTAL-native agent list in Makefile and CI_CD_SETUP.md (43fb13d).

False Positive

• cmd/review_context.go has no callers — cmd/comment_new.go calls loadConfigAndCoderRuntime (line 371) and writeReviewFile (line 406). The helpers were moved from deleted cmd/pr.go because comment notifications still need them. They are package-private, not exported.
• parseModifyArgs changed = to : — the helper was moved verbatim from cmd/project.go in origin/main; that implementation already accepted only field:value. cmd/agent_test.go covers the retained syntax.
• Imports cause side effects when only writeReviewFile is needed — Go imports are compiled per package; config.Load() is invoked only by loadConfigAndCoderRuntime, not at import time. Splitting this small, cohesive shared helper file has no practical benefit.

Remaining

• No code changes remain for the false-positive findings. Verified with go test ./cmd, go build ./..., and make help.