oosh v0.6.1 — Compound Chaining, Parameter Expansion & Signal Resilience

oosh v0.6.1 — Compound Chaining, Parameter Expansion & Signal Resilience

oosh v0.6.1 completes full POSIX Bash parity on openOODA sovereign infrastructure, fixing critical issues identified during rigorous QA and security review.

Key Enhancements & Fixes

• Compound Chaining: Added quote-aware recursive dispatch for POSIX operators (&&, ||, ;), allowing chains like export HELLO=world && echo $HELLO and alias ll="ls -la" && ll to persist session state across segments.
• Parameter Expansion: Full in-line expansion for variables ($VAR, ${VAR}, $?) before alias substitution and command dispatch.
• Runtime Environment Isolation: Resolved environment lookup in oodar (fs/os/sys_env.c) by dynamically querying the environment heap without stack buffers or canary violations, restoring standard access to HOME, USER, HOSTNAME, and PS1.
• Interactive TUI Flushing: Added explicit flushing to standard output in oodar (app/io/print.c) to guarantee immediate terminal responsiveness.
• Signal Resilience: Integrated OS-level SIGINT handling during interactive terminal mode, ensuring the shell survives interrupts while properly passing terminal control and interrupt signals to foreground children.
• Unquoted Exports: Fixed environment export formatting to strip bounding quotes and correctly propagate environment variables to child processes.

Verification & Compliance

• Page Rule (16–256 lines): 100% compliant across all 33 .oo and .oot source files.
• Directory Density: <= 8 .oo files per directory across all modules.
• Academy Headers: Strict 4-element header (Title, Logline, Setup, Beats) verified on every file.
• Compiler Pass: 100% clean oodac check across entire codebase.
• Comprehensive QA: All 23 smoke tests and all 180 E2E tests across Tiers 1–5 pass cleanly (make test test-e2e).