Tp-Note v1.26.7 A feature release adding inline Mermaid diagrams and LaTeX math to the HTML rendition, governed by a new embedded-content error policy, plus routine dependency upgrades. - Mermaid code blocks are now rendered to inline SVG in both the viewer and the exporter (new `mermaid` build feature, listed in `tpnote --version`). - LaTeX math formulas are rendered to MathML behind a new `latex` build feature. - New embedded-content error policy (`Inline` / `HardError`) controls how a failed Mermaid diagram or LaTeX formula is handled: rendered inline as an error box (viewer default), or aborting the export in batch mode (`tpnote -x . -b`, which always uses `HardError`), so a broken embed can never slip silently into an exported HTML or PDF. - Worked around a label auto-wrapping defect in the Mermaid renderer so multi-line node labels are sized and their edges routed correctly. - Added vertical spacing to rendered content tables for readability. - Upgraded compatible dependencies. - Published crates: tpnote-lib 0.46.6, tpnote 1.26.7 (tpnote-html2md unchanged at 0.3.9). Installers and standalone binaries for Windows, macOS, Linux and Debian/Ubuntu are attached below.