fix(docs): quote summary values containing colons in front matter

docs/ARCHITECTURE.md

@@ -1,6 +1,6 @@
 ---
 published_at: 2026-08-13T00:00:00Z
-summary: Oliver is a small, freestanding markup parsing and rendering library in Zig: markup infrastructure, not a publishing framework.
+summary: "Oliver is a small, freestanding markup parsing and rendering library in Zig: markup infrastructure, not a publishing framework."
 ---
 
 # Oliver Architecture

docs/BLOCKS-PARSING.md

@@ -1,6 +1,6 @@
 ---
 published_at: 2026-08-12T00:00:00Z
-summary: Contract for Oliver's container-block algorithm: block quotes and lists share the container stack (CommonMark section 5).
+summary: "Contract for Oliver's container-block algorithm: block quotes and lists share the container stack (CommonMark section 5)."
 ---
 
 # Oliver Block Parsing: Container Blocks (Block Quotes, Lists)

docs/C-ABI.md

@@ -1,6 +1,6 @@
 ---
 published_at: 2026-08-16T00:00:00Z
-summary: The stable C ABI for embedding Oliver from C, Rust, Python, Node, and other FFI consumers: the oliver_render / oliver_free surface, the memory-ownership contract, the error codes, and the CI-compiled example.
+summary: "The stable C ABI for embedding Oliver from C, Rust, Python, Node, and other FFI consumers: the oliver_render / oliver_free surface, the memory-ownership contract, the error codes, and the CI-compiled example."
 ---
 
 # C ABI

docs/CAPABILITIES.md

@@ -1,6 +1,6 @@
 ---
 published_at: 2026-08-14T00:00:00Z
-summary: What Oliver parses and renders today on main: the user-facing overview of frontend capabilities.
+summary: "What Oliver parses and renders today on main: the user-facing overview of frontend capabilities."
 ---
 
 # Oliver capabilities

docs/CLEANROOM.md

@@ -1,6 +1,6 @@
 ---
 published_at: 2026-08-13T00:00:00Z
-summary: The binding clean-room contract for everyone who writes Oliver code: read it before adding syntax features.
+summary: "The binding clean-room contract for everyone who writes Oliver code: read it before adding syntax features."
 ---
 
 # Oliver Clean-Room Rules

docs/COOKLANG.md

@@ -1,6 +1,6 @@
 ---
 published_at: 2026-08-13T00:00:00Z
-summary: Design and provenance contract for the first-class Cooklang (.cook) frontend: bytes in, a typed Recipe out.
+summary: "Design and provenance contract for the first-class Cooklang (.cook) frontend: bytes in, a typed Recipe out."
 ---
 
 # Cooklang frontend: design contract

docs/DOCUMENT-MODEL.md

@@ -1,6 +1,6 @@
 ---
 published_at: 2026-08-13T00:00:00Z
-summary: The normalized typed document is the contract between dialect frontends and every future renderer: not HTML-shaped.
+summary: "The normalized typed document is the contract between dialect frontends and every future renderer: not HTML-shaped."
 ---
 
 # Oliver Document Model

docs/ENTITIES.md

@@ -1,6 +1,6 @@
 ---
 published_at: 2026-08-12T00:00:00Z
-summary: Contract for CommonMark section 2.5 entity and numeric character references: implemented, scorecard 17/17.
+summary: "Contract for CommonMark section 2.5 entity and numeric character references: implemented, scorecard 17/17."
 ---
 
 # Markdown entity and numeric character references

docs/FEATURE-MATRIX.md

@@ -1,6 +1,6 @@
 ---
 published_at: 2026-08-14T00:00:00Z
-summary: Oliver's feature matrix: implemented, planned, and deferred items across the Markdown frontend.
+summary: "Oliver's feature matrix: implemented, planned, and deferred items across the Markdown frontend."
 ---
 
 # Oliver Feature Matrix

docs/HTML-BLOCKS.md

@@ -1,6 +1,6 @@
 ---
 published_at: 2026-08-12T00:00:00Z
-summary: Contract for Oliver's HTML block handling (section 4.6): all seven types implemented, scorecard 44/44.
+summary: "Contract for Oliver's HTML block handling (section 4.6): all seven types implemented, scorecard 44/44."
 ---
 
 # Markdown HTML blocks (§4.6)

docs/IMAGES-PARSING.md

@@ -1,6 +1,6 @@
 ---
 published_at: 2026-08-12T00:00:00Z
-summary: Contract for the inline-images slice of Oliver's Markdown frontend, derived from CommonMark section 6.7: implemented.
+summary: "Contract for the inline-images slice of Oliver's Markdown frontend, derived from CommonMark section 6.7: implemented."
 ---
 
 # Oliver Inline Parsing: Images

docs/LEAF-BLOCKS.md

@@ -1,6 +1,6 @@
 ---
 published_at: 2026-08-12T00:00:00Z
-summary: Implementation contract for CommonMark sections 4.1 and 4.3 leaf blocks: thematic breaks and Setext headings.
+summary: "Implementation contract for CommonMark sections 4.1 and 4.3 leaf blocks: thematic breaks and Setext headings."
 ---
 
 # Markdown leaf blocks: thematic breaks and Setext headings

docs/RAW-HTML.md

@@ -1,6 +1,6 @@
 ---
 published_at: 2026-08-14T00:00:00Z
-summary: Contract for the raw HTML slice of Oliver's Markdown frontend (section 6.6): implemented.
+summary: "Contract for the raw HTML slice of Oliver's Markdown frontend (section 6.6): implemented."
 ---
 
 # Oliver Inline Parsing: Raw HTML (§6.6)

docs/SESSION-1-REPORT.md

@@ -1,6 +1,6 @@
 ---
 published_at: 2026-08-14T00:00:00Z
-summary: The first Oliver session: repository foundation, specification research, feature matrix, document model, and the smallest vertical slice.
+summary: "The first Oliver session: repository foundation, specification research, feature matrix, document model, and the smallest vertical slice."
 ---
 
 # Session 1 Report

docs/TASK-LISTS.md

@@ -1,6 +1,6 @@
 ---
 published_at: 2026-08-16T00:00:00Z
-summary: The opt-in GFM task list items extension ([ ] / [x] / [X] checkboxes) in the Markdown frontend: shape, recognition rules, chosen behaviors, and rendering.
+summary: "The opt-in GFM task list items extension ([ ] / [x] / [X] checkboxes) in the Markdown frontend: shape, recognition rules, chosen behaviors, and rendering."
 ---
 
 # Task lists (extension)

docs/TESTS.md

@@ -1,6 +1,6 @@
 ---
 published_at: 2026-08-13T00:00:00Z
-summary: Tests are product contracts: zig build test runs six suites covering library modules, fixtures, conformance, CLI parsing, the XHTML profile, and the fuzz wall.
+summary: "Tests are product contracts: zig build test runs six suites covering library modules, fixtures, conformance, CLI parsing, the XHTML profile, and the fuzz wall."
 ---
 
 # Oliver tests and fixtures

docs/TEXTILE-PARITY.md

@@ -1,6 +1,6 @@
 ---
 published_at: 2026-08-13T00:00:00Z
-summary: Textile has no normative corpus, so its quality bar is a fixture audit: the parity audit holds the frontend to documented expectations.
+summary: "Textile has no normative corpus, so its quality bar is a fixture audit: the parity audit holds the frontend to documented expectations."
 ---
 
 # Textile parity audit

docs/WIKILINKS.md

@@ -1,6 +1,6 @@
 ---
 published_at: 2026-08-16T00:00:00Z
-summary: The opt-in modular wikilinks extension ([[target]] / [[target|label]]) in the Markdown frontend: shape, precedence, fallbacks, and the resolver policy.
+summary: "The opt-in modular wikilinks extension ([[target]] / [[target|label]]) in the Markdown frontend: shape, precedence, fallbacks, and the resolver policy."
 ---
 
 # Wikilinks (extension)

docs/XHTML.md

@@ -1,6 +1,6 @@
 ---
 published_at: 2026-08-14T00:00:00Z
-summary: The XHTML output profile: same normalized IR, same semantics, an XML-compatible serialization, with a fail-closed raw-HTML policy and a mechanical well-formedness gate.
+summary: "The XHTML output profile: same normalized IR, same semantics, an XML-compatible serialization, with a fail-closed raw-HTML policy and a mechanical well-formedness gate."
 ---
 
 # XHTML output profile

docs/github-pages.md

@@ -1,6 +1,6 @@
 ---
 published_at: 2026-08-14T00:00:00Z
-summary: How Oliver publishes this docs tree to GitHub Pages with a pinned Boris binary: profile, plan, artifact, and audit contracts.
+summary: "How Oliver publishes this docs tree to GitHub Pages with a pinned Boris binary: profile, plan, artifact, and audit contracts."
 ---
 
 # GitHub Pages publication

docs/index.md

@@ -1,6 +1,6 @@
 ---
 published_at: 2026-08-14T00:00:00Z
-summary: Oliver documentation home: a small, freestanding markup parsing and rendering library in Zig.
+summary: "Oliver documentation home: a small, freestanding markup parsing and rendering library in Zig."
 ---
 
 # Oliver documentation