docs(integration): record session model hotfix promotion

.project-docs/30-worklog/tasks/20260820-integrate-session-model-hotfix-7b3e91c4.md

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+# Task: Integrate session model and partner hot-add fix
+
+## Identity
+
+- Task ID: 20260820-integrate-session-model-hotfix-7b3e91c4
+- Mode: Integration
+- Branch: main
+- Worktree: D:\Datas\OthersProjects\makelore
+- Base commit: 1c6b00443631ad41929e79943bbea9bc7126b563
+- Owner: codex
+- Status: Blocked
+
+## Scope
+
+- Fast-forward verified source commit `c0163bc` into local `main`.
+- Reconcile the canonical OpenCode Session model ownership and per-Agent runtime acceptance documentation.
+- Preserve the unrelated untracked packaging task record without modifying or committing it.
+
+## Intent And Constraints
+
+- Keep page and slash-command model switching on OpenCode's native per-Session API; do not rewrite partner/provider configuration or restart the runtime.
+- Keep newly created unique-id partners usable after live discovery without weakening same-id content freshness, deletion/recreation, or attached/unknown generation safeguards.
+- Merge only to local `main`; do not push.
+- Preserve the explicitly adopted pre-existing untracked task record untouched.
+
+## Outcome
+
+- Fast-forwarded local `main` from `1c6b004` to source commit `c0163bc` without conflicts.
+- Promoted Session-model ownership, per-Agent acceptance, evidence, current-state, domain, and future verification boundaries into canonical project memory.
+
+## Verification
+
+- Source task verification: 405 focused tests, 176 files / 2068 full unit tests, typecheck, lint with zero errors and six pre-existing warnings, Vite build, and Electron E2E 1/1 all passed.
+- Integrated local `main`: `corepack pnpm run typecheck` passed.
+- Integrated local `main`: 7 focused unit files / 405 tests passed.
+- `git diff --check` passed with line-ending conversion notices only.
+- Task-aware documentation drift is blocked by two read-only task records in the base-to-HEAD diff: the explicitly preserved pre-existing untracked record `.project-docs/30-worklog/tasks/20260819-package-learning-off-115-9c4d.md`, and the source task record `.project-docs/30-worklog/tasks/20260820-session-model-agent-hotfix-6e4c9a2f.md` added by source commit `c0163bc`. The integration did not modify either record; deleting or rewriting them would violate the current authorization/source-record boundary.
+
+## Follow-ups
+
+- The pre-existing untracked packaging task record still requires a separate owner decision before this integration worktree can become clean and release ownership.
+- The task-aware drift checker also needs an integration-safe way to recognize an unchanged source task record that arrives with the source commit; this task leaves that record read-only as required.
+
+## Promotion Candidates
+
+- Applied the source task's Session-model and per-Agent runtime acceptance candidates; none remain pending for this integration.