emrg: generalize task handler — TaskHandler rename + repo-configured self-heal + template lookup (rant 2026-08-12T18:14:46 P1)

[argszero]

P1 of the host rant 2026-08-12T18:14:46 (generalize scheduled tasks + GUI task management). Pure backend refactor, no UI. Three changes:

1. EvolutionHandler → TaskHandler class rename (the handler is not evolution-specific — paper/open-source/promote share it). All log strings, HANDLERS dict, type hints, and tests updated; daemon.py comment synced.

2. Workspace self-heal generalization — the old gate if self._project_name != "emrg" or self._repo != self.REPO: return True hardcoded EMRG-only. New _repo_configured flag: any task with a real repo (config owner/repo override, or a git remote detected in its project path) gets clone/align self-heal into ~/.emrg/evolution/<repo>/; the emrg evolution task always counts as configured (defaults to argszero/emrg). Tasks without any repo config skip self-heal (unchanged behavior for non-repo paper/open-source tasks).

3. Template lookup helper _resolve_task_template(task_type): built-in TASK_TEMPLATES take priority; custom task types (P2) fall back to ~/.emrg/task-templates/<type>.md, then to evolution_prompt.md. Pure helper so P2's CRUD can be unit-tested.

Tests: +6 (config owner/repo override, emrg default-configured, no-repo skip self-heal, user-template resolution, missing-template fallback, builtin-not-overridable) → pytest 730→736; Agent.md count synced. No GUI changes.

[argszero]

✅ LGTM — cycle

Audited the diff (192+/77-, 5 files) on top of master 01b7cfa:

1. TaskHandler rename — complete: grep-verified no remaining code references to EvolutionHandler (only historical quick-ref text in evolution_prompt.md, which documents past PRs — correct to leave). daemon.py comment synced.
2. Self-heal generalization — dual-state verified:
   • emrg task → _repo_configured=True (defaults argszero/emrg), existing usable dev repo → no clone (behavior unchanged for this very workspace);
   • non-emrg task without repo config → _repo_configured=False → skip self-heal (unchanged);
   • config owner/repo override or git remote in project path → self-heal enabled (new behavior, only clones when local repo unusable).
   • evolve_dir now ~/.emrg/evolution/<repo> (repo-specific) — consistent with the repo-configured semantics.
3. _resolve_task_template — builtin TASK_TEMPLATES priority (unchanged for the 4 builtin types), user ~/.emrg/task-templates/<type>.md fallback, then evolution_prompt.md. Pure helper; config_dir imported correctly.
4. Tests — full pytest 736 passed locally (730→736, +6 as claimed: repo override / emrg default / no-repo skip / user-template / missing fallback / builtin-not-overridable); CI 31587324340 green. Agent.md count synced.

No issues found.

[argszero]

✅ LGTM — cycle

Re-verified P1 (rant 2026-08-12T18:14:46, refined by 18:23:15) on head dfad63e:

1. TaskHandler rename — EvolutionHandler → TaskHandler across scheduler.py (class, HANDLERS, all log strings, type hints), daemon.py comment, both test files. No behavior change (pure refactor).
2. Self-heal generalization — _repo_configured flag: config owner/repo override or a git remote in the project path enables clone/align self-heal into ~/.emrg/evolution/<repo>/; emrg evolution task always configured (defaults argszero/emrg); no-repo tasks skip. This correctly implements the rant's "有 repo 配置就自愈" — _repo_url always has a default so a literal if not self._repo_url would never gate; the flag is the faithful form.
3. _resolve_task_template — builtin TASK_TEMPLATES priority → ~/.emrg/task-templates/<type>.md → evolution_prompt.md fallback; pure helper unit-testable for P2.

Verification: pytest 736 (was 730, +6 new tests incl. builtin-not-overridable + user-template resolution), import + CLI OK, Agent.md count synced (doc-count guard green). CI test run 31587324340 PASS (actionlint + doc-count guard included). No issues found.

[argszero]

✅ LGTM — cycle

3rd consecutive ✅ from a different cycle. Head dfad63e unchanged since my first review (10:28:20Z); CI 31587324340 green; full pytest 736 passed locally. Merge condition met (3 consecutive ✅, no ❌ between).