feat(notion-sync): one-way read-only pipeline view in Notion via MCP (#169)

Adds /notion-sync per the conditions agreed in discussion #166: tool-agnostic sync contract with Notion as the in-tree reference binding, silently optional (covers unconfigured, headless, and unauthenticated states), read-only toward the repo with the gitignored sync-state file as its only local write, write-once page bodies, documents sync as filenames only. Complements /html-report: deep local dashboard vs glanceable anywhere-view.

README.md

@@ -133,10 +133,11 @@ This runs the full workflow: evaluate fit, draft CV + cover letter, review with
 
 ## Other commands
 
-`/setup`, `/scrape`, and `/apply` form the core workflow. Eight more commands extend it once your profile is in place:
+`/setup`, `/scrape`, and `/apply` form the core workflow. Nine more commands extend it once your profile is in place:
 
 - **`/interview`** preps you for a scheduled interview on a tracked application. It builds a stage-specific prep pack from the application's archive (the exact posting, the CV and cover letter the interviewer actually read, feedback recorded from earlier rounds), researches the company and interviewers with a verify-before-use rule, maps likely questions to your STAR examples, and offers a mock interview following the roleplay protocol in `07-interview-prep.md`. Gaps get honest bridge answers, never invented experience.
 - **`/outcome`** records what happened to an application - interview stages, offers, rejections, silence. It archives the submitted CV, cover letter, and posting text into `documents/applications/<company>_<role>/`, keeps `outcome.md` in the format `/setup` Path A parses, and updates the tracker. Once a few applications resolve, it points you back to `/setup` to calibrate the fit framework from what actually got interviews.
+- **`/notion-sync`** publishes a one-way, read-only view of the pipeline into a Notion database via the official Notion MCP server (OAuth, no API keys) - one row per ranked job plus every tracked application, with a write-once briefing page per row. The repo files stay the system of record: nothing syncs back, and documents sync as filenames only. Complements `/html-report`: that is the deep offline dashboard you regenerate at your desk; this is the glanceable live view from anywhere Notion runs (desktop, web, phone).
 - **`/rank`** bridges `/scrape` and `/apply`: it batch-scores all newly scraped postings against the fit framework (parallel agents fetch each posting and score the five evaluation dimensions) and returns a ranked shortlist with honest per-job strengths and gaps. Deal-breakers veto, deadlines get urgency flags, dead postings get marked expired. Pick a number and it hands off to the full `/apply` workflow.
 - **`/expand`** enriches your profile by scanning public sources you've already linked in it (GitHub repos, portfolio site, Kaggle, Google Scholar) and looking up syllabi for named courses and certifications. Discovered competencies are added to your profile with a source tag. Useful right after `/setup` to surface skills that documents alone don't make explicit.
 - **`/upskill`** analyzes the gap between your profile and your tracked job postings (or a single posting via `/upskill <URL>`). Produces a prioritized heatmap of skill gaps and a learning plan with web-searched study resources and time estimates. Useful for career planning between applications.
@@ -162,6 +163,7 @@ ai-job-search/
 │   │   ├── outcome.md                 # /outcome record application results, archive materials
 │   │   ├── interview.md               # /interview stage-specific prep pack + mock interview
 │   │   ├── html-report.md             # /html-report generate application tracker dashboard
+│   │   ├── notion-sync.md             # /notion-sync one-way pipeline view in a Notion database
 │   │   └── reset.md                   # /reset wipe profile data or documents folder
 │   ├── skills/
 │   │   ├── job-application-assistant/  # Core application skill