refactor: consolidate planning into prd-to-tasks skill

fix: skill stops after creating tasks, prompts user to run ralph

refactor: rename skill from converting-prd-to-tasks to prd-to-tasks

remove: delete prd skill, keep only prd-to-tasks

fix: restore both prd and prd-to-tasks skills correctly

refactor: rename prd skill to prd-to-tasks

remove: delete prd-to-tasks skill

feat: skill reports task namespace clearly at completion

wip: task namespace detection in prd-to-tasks

feat: prd-to-tasks validates task namespace before creating tasks

fix: make TaskList directive more explicit and immediate

fix: use env to pass environment variable through timeout

fix: plan mode environment variable and immediate action directive

refactor: plan mode now audits tasks instead of creating them

refactor: remove redundant PRD parameter, use docs/*.md for specs