When OPENCLAW_STATE_DIR changes between session creation and resolution
(e.g., after reinstall or config change), absolute session file paths
pointing to other agents' sessions directories were rejected even though
they structurally match the valid .../agents/<agentId>/sessions/... pattern.
The existing fallback logic in resolvePathWithinSessionsDir extracts the
agent ID from the path and tries to resolve it via the current env's
state directory. When those directories differ, the containment check
fails. Now, if the path structurally matches the agent sessions pattern
(validated by extractAgentIdFromAbsoluteSessionPath), we accept it
directly as a final fallback.
Fixes#15410, Fixes#15565, Fixes#15468
Older OpenClaw versions stored absolute sessionFile paths in sessions.json.
v2026.2.12 added path traversal security that rejected these absolute paths,
breaking all Telegram group handlers with 'Session file path must be within
sessions directory' errors.
Changes:
- resolvePathWithinSessionsDir() now normalizes absolute paths that resolve
within the sessions directory, converting them to relative before validation
- Added 3 tests for absolute path handling (within dir, with topic, outside dir)
Fixes#15283Closes#15214, #15237, #15216, #15152, #15213
