v0.2.0 — Ship v1 of LLM Response Parser: Paste Modal + Spec-Conformant Output

Closes the LLM-citation-parser feature to a true v1 ship. Three coordinated changes: a Paste LLM Content modal that intercepts at paste-time so the colliding-numerics problem never enters the file, a fix for Perplexity's `Title https://url` reference-def format that was being silently rejected by the refdef-body heuristic, and a spec-conformance pass on transformation output that brings inline citation spacing and reference-def body shape into line with the Lossless Citation Spec. Output now matches the spec on inline whitespace and refdef body shape; the canonical `date / author / publisher / accessed-date` envelope still requires network or AI assistance and is explicitly deferred.