Merge develop into main (v0.0.3 runtime + panel + AI client updates)

[bradvin]

Summary

This PR merges develop into main.

Range: origin/main..origin/develop

• 105 commits
• 113 files changed
• 24,030 insertions / 8,291 deletions

What changed

1. Agent runtime and orchestration

• Added DB-backed agent run/session/event stores and helper layers.
• Added shared agent loop runtime with transport abstraction, slice orchestration, idempotency handling, retry accounting, and pause/resume semantics.
• Added runner plumbing and REST endpoints for agent runs/chat execution.

2. Policy, permissions, and safety

• Added trigger-based runtime policy helper and tool gating.
• Improved requesting-user enforcement for resumed tool execution.
• Hardened status/attempt semantics and transactional completion paths.

3. Abilities management

• Added abilities settings REST controller and admin UI tab for enabling/disabling abilities.
• Improved /tools list visibility for enabled external abilities.
• Refactored abilities helper logic and expanded abilities test coverage.

4. Panel and onboarding UX

• Major panel refactor for in-progress lifecycle UX, polling cadence, dedupe of tool calls, and terminal/history persistence.
• Enhanced setup wizard and setup cards, including provider setup flow now routed via Connectors.
• Improved card actions, dialogs, and message handling reliability.

5. AI client integration updates

• Updated to latest wordpress/wp-ai-client (0.4.x) and adjusted safe loading behavior.
• Fixed max_output_tokens handling for supported model/provider combinations.
• Hardened provider detection/configuration flow and setup messaging.

6. QA, CI, lint, and docs

• Added/expanded runtime, runner, controller, policy, security, and helper unit tests.
• Updated CI to run stronger checks (including plugin-check flow updates).
• Improved JS lint configuration/rules and cleaned lint debt.
• Added/refined technical docs for runtime, policy, stores, and streaming support.

7. Release/build outputs

• Version bump to 0.0.3.
• Regenerated translation template and build artifacts.

Local verification at branch head

• composer test
• npm run lint:php

[greptile-apps]

Too many files changed for review. (113 files found, 100 file limit)